Same. I seem to recall Cortex Command not having a Steam key way back when I got whatever bundle it was in, and now there's a Steam key for it. And I don't even know when I got Dustforce.I must say, I'm surprised when I checked my Humble Bundle account - suddenly there are other games in it that I don't recall being added!
False.In order to get more cards, you need to buy them on the market, Valve takes a cut out of that.