INSTALLMENT PROMISSORY NOTE

$100,000                                        October 1, 1994
                                                Phoenix, Arizona

                  FOR VALUE RECEIVED,  the  undersigned,  ILX  INCORPORATED,  an
Arizona corporation (the "undersigned"), promises to pay to the order of Martori
Enterprises Incorporated ("Payee"), at Phoenix,  Arizona, or at such other place
as the holder hereof may from time to time  designate,  the principal sum of One
Hundred Thousand Dollars ($100,000),  together with interest thereon as computed
below, as follows:

            Installments of principal and interest in the amount of $3,750 shall
            be payable quarterly on the first day of January,  April,  July, and
            October of each year  commencing  January 1, 1995. The entire unpaid
            principal  balance,  together  with all accrued and unpaid  interest
            thereon and other costs payable hereunder,  shall be paid in full on
            September 30, 1998.

                  Interest shall be charged on the unpaid  principal  balance of
this Note from  October 1, 1994 to the date of maturity on a daily basis for the
actual number of days any portion of the principal is  outstanding,  computed on
the basis of a 360-day  year,  at a per annum  rate (the "Note  Rate")  equal to
eight percent (8%).

                  The undersigned  acknowledges  that the undersigned has agreed
to the  rate of  interest  represented  by the  Note  Rate,  and any  additional
charges,  costs and fees arising out of or related to the  transaction  of which
this Note is a part, to the extent deemed to be interest under applicable law.

                  Each and every  payment  due under  this Note shall be made in
lawful money of the United State of America and in immediately  available funds,
and when made shall be first  applied to accrued  costs,  expenses and fees,  if
any, then to accrued interest that has not yet been added to principal, and then
to the reduction of the principal amount of this Note. This Note may be prepaid,
in whole or in part, without penalty or premium, provided that each such payment
shall be applied as set forth above.

                  At the option of the holder hereof, any of the following shall
constitute  a  "default"  hereunder,  and,  upon  the  occurrence  of any of the
following,  all obligations hereunder shall, at the option of the holder hereof,
become immediately due and payable, without presentment for payment,  diligence,
grace,  exhibition of this Note, protest,  further demand or notice of any kind,
all of which are hereby expressly  waived:  (i) any sum owing hereunder or under
other  indebtedness of the undersigned to Payee is not paid as agreed;  (ii) any
petition or application  for any form of relief under any provision of Title 11,
United States Code, as amended from time to time (the "Bankruptcy  Code") or any
other law pertaining to  reorganization,  insolvency or readjustment of debts is
filed  by  or  against  the  undersigned,  its  assets  or  affairs;  (iii)  the
undersigned  makes an  assignment  for the benefit of  creditors,  is not paying
debts as they become due, or is granted an order for relief under any chapter of
the Bankruptcy Code; (iv) a custodian,  as defined by the Bankruptcy Code, takes
charge of any property of the undersigned; (v) garnishment,  attachment, levy or
execution is issued  against any of the property or effects of the  undersigned;
(vi) there is a termination, failure to exist or dissolution of the undersigned;
or (vii)  there is any  default  or breach of any  representation,  warranty  or
covenant,  or  there  is  any  false  statement  or  material  omission,  by the
undersigned  under any document  forming part of the  transaction  in respect of
which this Note is made or forming part of any other transaction under which the
undersigned is indebted to Payee.

                  The undersigned  hereby agrees:  (i) to any and all extensions
(including extensions beyond the original term hereof) and renewals hereof, from
time to time,  without  notice,  and that no such  extension  or  renewal  shall
constitute or be deemed a release of any  obligation of the  undersigned  to the
holder hereof; (ii) that any written  modification,  extension or renewal hereof
executed by the undersigned  shall constitute a  representation  and warranty of
the  undersigned  that the unpaid balance of principal,  interest and other sums
owing hereunder at the time of such modification,  renewal or extension are owed
without adjustment for offset,  counterclaim or other defense of any kind by the
undersigned against Payee; (iii) that the acceptance by the holder hereof of any
performance  which does not comply  strictly  with the terms hereof shall not be
deemed to be a waiver or bar of any right of said  holder,  nor a release of any
obligation of the undersigned to the holder hereof;  (iv) to offsets of any sums
or property owed to the  undersigned  by the holder hereof at any time; (v) that
this Note shall be  governed by the laws of the State of Arizona  applicable  to
promissory  notes made and to be paid in the State of  Arizona;  and (vi) to pay
the holder  hereof upon demand any and all costs,  expenses and fees  (including
reasonable  attorneys'  fees)  incurred in  enforcing or  attempting  to recover
payment of the amounts due under this Note, including  negotiating,  documenting
and otherwise pursuing or consummating modifications,  extensions, compositions,
renewals or other similar transactions  pertaining to this Note, irrespective of
the  existence of an event of default,  and including  costs,  expenses and fees
incurred before, after or irrespective of whether suit is commenced,  and in the
event suit is brought to enforce payment hereof,  such costs,  expenses and fees
and all other issues in such suit shall be determined by a court sitting without
a jury.

                  This Note is  secured  by a  Security  Agreement  of even date
herewith.

                  This Note is executed to be effective as of the date set forth
above.


                                    ILX INCORPORATED, an Arizona corporation



ATTEST:                             By:             Nancy J. Stone
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                                      Its:          Executive Vice President
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By:        Alan J. Tucker
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Its:      Executive Vice President
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