Well the answer is that I underperform what could have been optimal. That means I sold most of my bitcoins between $200 and $1000 USD. Sure it hurts, but I still have some.
I got out of the stock market in 2006 because I thought it was overpriced too. I'm the type of person that looks at fundamentals / physics and I get in and out early. Bitcoin might be going to $50k a coin, but I bought at $3 USD and I still have a small amount. I still think the governments are going to ban it, but having a bit of exposure is averaging the risk.