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Who are you to decide what others deem valuable? Apparently there is a market for those items. And while we are talking about
hacked or cracked. Allowed? Why? Some people paid full price for it and some skid selling it for almost nothing.
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Steam ToS[1] explicitly prohibits selling accounts. See 2G.
The "some people paid full price for it and some skid selling it for almost nothing" argument is also true in your own case. The full price for your games is listed (by yourself) as 270$, but you also think that 0.1 BTC (~22 $ currently) is a pretty good price. I will not get into the most likely carded random steam games for almost nothing you also took an intrest in, but just ask you to reconsider your hypocrite point of view.
[1] http://store.steampowered.com/subscriber_agreement/english/