Meh, I maintain that Humble Bundle is the ONLY place that actually does "pay what you want." But even they get it slightly twisted by holding certain games over your head unless you pay a certain amount. Other indie bundles are much worse, with a minimum price, but they still call it "pay what you want" because there's the possibility to pay more than that.
I much prefer GOG's build-a-bundle sales. This promotion is only decent if you've somehow managed *not* to buy a single Interplay game from GOG thus far. Otherwise, it's basically a charity drive where people can feel satisfied getting their name on the leaderboard, for throwing money at a dead/dying company. I'm not going to put in for a bunch of crap games I don't want, just to get the few that I don't already have (basically most of what they hold for the $35 tier).
And isn't Interplay only one guy now, who holds the rights to all those old games and is just getting royalties from the sales? It's not like they're going to be able to take an infusion of cash like this and make something worthwhile. Why do they deserve the fundraising over anybody else? What's the point?