Car reference hell
I assume the previous poster is middle management, and can only think in terms of small BMWs and powerpoint pie charts.
I would liken it to the mid 80s, when the Rover 800 replaced the SD1. The Police forces buying 800s then realised they preferred the room and power of the SD1. Rover would have happily swapped the 800 for one of the stockpiled SD1s lying about, however the dealer would still charge for putting on the lights, livery, equipment etc. There would be no use suing Rover for the costs, they offered the downgrade for free, it was up to the dealer to charge for getting the car, refitting it to spec etc.
(Yes I know the forces themselves stockpiled the mighty SD1 V8, but I don't think businesses had the foresight to purchase warehouses of boxes of XP pro).