Yes soon bitcoin will be to the moon really.I don't agree with who says 500 $ is the moon but in reality it is just warm up and starting period is to began soon and then so on towards real moon when price will reach over 10000 $/BTC.
A stable 500$ would be
very nice. I could see making more efforts for obtaining a Bitcoin revenue more worthwhile then. My little miner is not earning a whole lot of bitcoin after the electricity costs, but i think if we see a stable 400$ by 2016 and then stable 700$ by 2017, that my mining endeavors would become very worthwhile.
Some people are going crazy, speculating that the price will raises to new, massive, Heights (exponentially) by 2020, which i doubt, expecting 5 digits BTC value seem a bit farfetched so soon, but just somewhere in the thousands would make be very happy.