Regardless of the fact that you know it's going to happen sometimes, don't you get a little pissed when you miss a massive run like right now... I just watched BTC go up over 300 in 15 minutes... Uggg!
I am remembering how I sold several thousands of them at $100. And biting in my fingers when thinking about nice silver coin with 50 bitcoins on it which I didn't buy in one of early bitcoin conferences. That time price was $10. But still - interesting experience.