It's difficult right now without tying it to something more stable (like the $ or €).
I've linked to this video before, but I think it's so good that I'll do it again:
http://www.youtube.com/watch?v=qHUPPYzzZrIIf you look at Bitcoin's volatility like that guy in the video explains.. you'll understand that it won't always be this way. It will either become more stable much higher, or hit a dead stop at zero (death).
We're still in the "pre-IPO" phase. Roller coaster rides are included free of charge.