I think a better solution for the Humble Bundles is to allow them to be traded for other Humble Bundle games only.

If you want to complicate things even more you could also allow this:

Only the beat the average games can be sold and they cannot be sold for more than the price of the average at the end of the bundle. Not sure if this data exists or not for past bundles.

Either way I see no issue with the trading of Humble Bundle game keys for other Humble Bundle game keys. It would be pretty silly for someone to stock up on $1 versions and try to trade them on here for other Humble Bundle keys, but I guess that's a possibility technically.

Anything else and I think it would encourage people to hoard $1 copies, which tons of people already do and try to trade/sell them elsewhere (like Steamtrades or Steamgifts).

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Vengeance 4 Oldboy CML
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