Honestly? No, not really.
I was never a big gamer when I owned a PS2 (not until the end of it's lifespan anyway) and as a result I simply bought games based off the boxes - a strategy than ended up netting me a few gems (Jak and Daxter, Fable : TLC) and a large amount of crap (Golden Eye : Rouge agent).
As a result I don't really feel the need to play any of my old games - any I did care about, such as sports games, have newer versions I can play on the 360 - and as for any retro games I missed; well there's live arcade.