I have over 200 games (not the largest library I know but still sizable) and most of them are unplayed and never will be. A majority of them come from the monthly Humble Bundle subscription that gives me like 7-12 games a month. I haven't redeemed any in a while, I mainly keep the sub for the store discount, and the mild feeling of goodwill I receive for having donated to "charity" (since Humble's acquisition by EA I question how much of this goes to charity).