It doesn't matter if bitcoin is high or low against USD. All that matters is stability. It's supposed to be a currency not an investment.
http://blog.oleganza.com/post/43384713336/philosophy-of-bitc...
It's supposed to be a currency, arguments to the contrary are hand waving. Maybe Bitcoin's primary role in history will be as a placebo treatment for mild cases of paranoia. That certainly wasn't the intention though.