At this point, we can write off Bitcoin as a failed experiment. It's worth thinking about how a different distributed digital currency might be made workable. A few problems which have to be solved:
Similar thought after getting familiar with this game, hope that some new version of bitcoin or new digital currency will address these weaknesses:
1. Wallet.dat operation complexity and security concern
2. unstable exchange price
3. deflation nature
All these makes it a perfect speculation tool for IT/Gaming enthusiasts

I happened to be an IT/Gaming enthusiast, it is fun to play around