1000 steam games, eh.. they are cheap, I'm close to that on 360/ps3 games, most bought on EBAY/gamefly sales/half.com for $5-10. You would be surprised how quick a $59 game is $9.99 (often less then 2 months, not a long wait with 1000+ Steam games and almost as many other on backlog) as long as its not a COD/BF title and I play those On PC if at all.
But yes, who can play um all, I try to look at almost all and play the ones that catch my eye. Surprisingly its often the greenlight games and not the AAA titles..
and Lf4D2 still has the most time played on My systems, I love a TEAM game where TEAM play is really rewarded.. TF2 does this too, but in huge matches a couple guys TEAM playing is not as noticeable (still TF2 is awesome).