Just got this email from Humble:

There is a saying that “He who speaks first loses,” which is supposed to be a negotiation power-play. This is very convenient for me, since I tend to not say anything when things get awkward, lest I make things more awkward. Which is does, inevitably. But I somehow get rewarded for it, so I never change.

So… thanks, Humble. I was going to buy the bundle for $12, but I accept your $6 counter-offer.