After months and months the price drops and drops. My $1,000 is worth $200. I go through a ridiculously long process of proving my identity to Mt. Gox and Dwolla just to get real USD back at 1/5 their original value.
Now if only I had kept it in there for the long haul, I'd have my $1,000 back.
It's precisely this volatility that personally makes me skeptical of it truly reaching a critical mass of any sort.