Before anyone goes postal on me, this is for Steam users who do not care about the new trading card system.
If you have no use for the cards but find yourself in possession of some, and know they will either gather digital dust or take quite a bit of effort for $0.35 return, I ask that you send them to me. The reason I collect them is incidental; due to my medical condition, I basically live in front of a computer, so I spend quite a bit of time (and money) on games, SP mostly as I have some limits that prevent me from MP yet. This puts me at quite a high "rank" in terms of the Steam trading card system, but my lack of MP means trading is very difficult.
And yes, I am willing to pay, trade, or my preference buy your games and swap them, if you have quite a few to send me.
The short version: If I know you here, friend me on Steam and I'll buy you games that are likely just a bit more than you would get from just selling the cards.