I dont own them all as i speak but i have bought the Ps1, ps2, psp, ps3 (I have 3 in house now) and we had around 100 ps2 games and i have bought around 50 but traded alot of ps3 games.
the PS1 is lost somewere (cant find it :( ), the PS2 was traded for an xbox360 (very upset over that) and i have 3 ps3's.
so does that make me the top of the order. Me and my 3 brothers have been sony fans true and true for heading to 16 years now.
Of Course That's Just My Opinion, I Could Be Wrong