@filipnr1, I mean, all are keeping the USD in BTC now until hard-fork (1st ans 2nd), to get as much new coins as they can. The value will be after... if they don't have any one to buy, at least they tried it.
That's why everyone is there buying now.
You said if there is no one to buy? Precisely, vendors will put value down and down until someone buys... or go to zero.