Your sadness made someone else very happy. This speculation game is a zero-sum.
Correct. I couldn't have gotten into Bitcoins, where it not for somebody who got out at $10. But then maybe he started mining when it was easy or got in when they were selling kBTC at $2.50
Advice? Depends on your risk profile and your understanding that Bitcoin is totally unlike any stock or option! The price will eventually level out. Could be at $1/BTC or at $100/BTC. Hell, if enoug people join the craze we could soon be trading in mBTC!