The price will go up over time, but more importantly...Bitcoin will grow over time.
I think that Bitcoin IS growing every day already since day 1 and price has nothing to do with that...The price will catch up once the progress is much more visible...We are hearing about milions USD invested in BTC start ups, but the real effect will take few years so who knows what the price will be until then...
I just can't imagine price declining to 100-200 USD level...too much progress since those days was made...flashcrash maybe, but not for long...But in BTC is everything possible, so guys don't invest more than you can afford to lose