How can you not understand!!
Look, if he wants to buy the games on format X that's his decision. Christ, I buy stuff routinely for my XBox as I presume it to be the best version. But, that doesn't change the fact that if I am interested in a game like BG&E, it's available for all three formats. BG&E, a game he was interested enough in to purchase, was available for PS2/XBox/GC.
So tell me, how can you explain the following (which is what you are apparently trying to do while throwing fanboy accusations at me):
I am not interested in BG&E (GC)
I am interested in BG&E (PS2)
Obviously once you have bought the game for your PS2, you are not going to go out and buy it again for your GC. But, it doesn't change the fact that it was a game you were interested in, and it was an option to buy it on the GC.
Christ, get over your unatural urge to label me a fanboy and you might see my point.