Ouch... if the price of Bitcoins doesn't rise sharply, I'll probably just bail then :\. I'd still probably make money over the electric use, but whether it will be worth it or I will find people to buy the coins... that's what I can't guarantee.
I bet the decline had something to do with Silk Road being temporary offline and closed to new registrations. Now that it is back up (and the black market that uses BTC seems to be doing fairly well now), I imagine prices will remain at least somewhat more stable. BTC had that incredible growth after the "public" articles/news came out about Silk Road.
Also, once there is a fast way to get USD into MtGox (or other similar ways to buy BTC within a few hours), I imagine prices will increase. It's such a PITA to buy BTC now, and eventually it won't be feasible for the average user to continue mining BTC (unless it is met with a proportional increase in USD value). Once you can quickly, easily, and safely buy BTC with USD, I imagine many people will opt out of mining and continue on with that route. I already do a bit of both, but I primarily mine because it's such a hassle to buy BTC. By the time I get money into MtGox from Dwolla, who knows how the value of BTC will have changed!
I know someone is setting up a site that will allow you to send money to MtGox "instantly". It seems as though that's all the site will offer for now. That could be a potentially excellent service for BTC. Once things like this are implemented, I imagine the value of BTC will increase and be more stable.