It's not really staying even at $650, the price has only been here for a few days, compared to the $440s for almost a month.
I actually wish I bought Bitcoin when it was at $1, or less.
We all wish we had bought in back then. Stupidly I listened to the goons at Something Awful, who have pooh-pooh'd the idea from the very beginning, even as the price has gone into the stratosphere.