Supply is constant so I guess the big question I have is how do we get demand to go higher?
A year ago, none of us could have imagined Bitcoin to become so popular in so little time. There were some services built around Bitcoin, but they were more like volunteer work than serious businesses. People were toying with new ideas, it was mostly about fun and passion than substantial monetary gain. Everyone was caught off-guard when exchange rates went off the scale, DDOS attacks, then serious cracking attempts, scams and theft begun. It was too early. If you asked, my most optimistic bet would be $2 per BTC around this time.
I think the community will continue building the structure as always, and Bitcoin will become more and more appealing to users. We need to concentrate on real life uses of the currency. That's what "backs" Bitcoin. There is no other "easy" way to get demand to go higher.
I also don't think Bitcoin commerce will diminish with low exchange rates, but time will tell of course. It would be nice if we had a tool to measure the trend.