Some money's moving but it's only normal, the real worry is that the supply may be growing too fast. 4,000 BTC are added each day, that's a lot!
Yes, that is the problem. And the supply is ALWAYS growing, even at times when there's no real demand.
But if the price reaches around 250, then that won't be a big problem, as the miners would not be profitable, and some of them will chose to shutdown their operation, until bitcoin price comes back up.
I believe they'll keep on mining. Electricity bills aren't so high. If
's price drops to $100, that'll be a real problem, but $250 is fine.