No, as a person with a PS2 and the intention of buying a DFP when I get GT4 Forza alone does not justify me buying an X-Box to play Forza, but then if I had an X-Box GT4 and the DFP wouldn't be enough to justify spending £100 on a PS2 and the £40 on the game and a further £100 on the DFP. Forza does not need to be supremely perfect either, GT4 isn't, far from it it has ton's of mistakes, small and big. There are large ommisions too, and while I sat in the GT4 camp before on the umber of cars after seeing the final car list theres far too many of them with under 60bhp which will be agony to drive, Forza just leaves them out. GT4 will be the better game overall (for single player anyway) but come April I will be getting an X-Box, and Forza and get it on live, but not just for Forza.