How do people have Thousands of steam games?

This topic made me check, and I have 174 unredeemed keys from Humble Bundle (mostly for Steam) and 241 games on Groupees (mostly not redeemed). There are probably repeats in there, but that's around 400 games. And I thought I was being selective...

Giveaways(most of the time i lost),indie bundles(im russian,so im forced to buy from someone else),trade sites,sales and such helped me to become close and close to be the game collector sort of. Formely i thinked i should stop at having about 50-100 games,but cards and cards didn't. After ruble price drop,my bundle buying rate has dropped over time,and ruined economy for bad. Thanks to my game lust,i found some hidden gems in those indie/humbled AAA titles.