
<PAGE>   1
                             JOINT FILING AGREEMENT


      In accordance with Rule 13d-1(k) under the Securities Exchange Act of
1934, as amended, the undersigned agree to the joint filing on behalf of each of
them of a statement on Schedule 13G (including amendments thereto) with respect
to the common stock of Powerhouse Technologies Incorporated and further agree
that this agreement be included as an exhibit to such filing. Each party to the
agreement expressly authorizes each other party to file on its behalf any and
all amendments to such statement. Each party to this agreement agrees that this
joint filing agreement may be signed in counterparts.

      In evidence whereof, the undersigned have caused this Agreement to be
executed on their behalf this 9th day of February, 2000.

                                   PAR INVESTMENT PARTNERS, L.P.

                                   By:  PAR GROUP, L.P.
                                        its general partner
                                   By:  PAR CAPITAL MANAGEMENT, INC.
                                        its general partner

                                   By:  /s/ Frederick S. Downs, Jr.
                                        ----------------------------------------
                                        Frederick S. Downs, Jr., Vice President


                                   PAR GROUP, L.P.

                                   By:  PAR CAPITAL MANAGEMENT, INC.,
                                        its general partner

                                   By:  /s/ Frederick S. Downs, Jr.
                                        ----------------------------------------
                                        Frederick S. Downs, Jr., Vice President


                                   PAR CAPITAL MANAGEMENT, INC.

                                   By:  /s/ Frederick S. Downs, Jr.
                                        ----------------------------------------
                                        Frederick S. Downs, Jr., Vice President









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