Just purchased Fort Solis for 1 euro because of the latest humble choice.
If I was a developer, I would never add my game to humble bundle. The way its value instantly drops to pennies, and basically stays there forever, killing all future sales on Steam and non-reseller platforms, is just suicidal. I actually saw interview with one czech indie dev where he lamented exactly this - after he added his game - really cool strategy: to HB, all his sales basically dropped to zero and even years after the bundle, people are buying the game for 1 euro on reseller websites instead of on Steam. The regret was palpable.