This is crazy fun to watch. I just bought 4 bitcoins at $685 from Coinbase and it's already up to $777 just 10 minutes later. I think I hit the right time to buy, now I wait for it to go to $2000.
I'm going to wait until it stabilizes around a price before I buy again.
The good news: China can't ban BitCoin as a currency again, and the US looks like it isn't going to.
Merrill Lynch appraised it at $1300: http://www.ibtimes.com/bitcoin-worth-1300-merrill-lynchs-cas...
I agree with you about no government being able to ban bitcoin. It's unstoppable.