Your console seller is ....

[Munkeh111]

I didn't really choose the PS1, GBA or PS2, but for PSP, it was kind of the brand, but if there was a game, it was very probably GTA LCS (if it had been announced)

for PS3, it was FF XIII (yes I am looking that far ahead)
for 360 it would be Ace Combat 6 (I would value that more than Halo)