I think it's bogus to use steam achievements for this, there are so many people who have hundreds of games in their collections from humble bundle, flash sales etc, and lots of people don't want to play indie title xx123, I think a far better option would've been to use xbox live/ PS trophy lists, I finish almost all my games, or well try to, but I'm finishing them in stages, not immediately after I've bought a game, it might take me a year to get to it and finish it, but i'll get there, so the stats are a bit bogus in my opinion...