Bitcoin at ~5 cents in 2010!
...but I didn't know what they were or anything about this forum, so i didn't buy any...
That is also my biggest miss. Actually, I wanted to enter BTC before November 2013, but thought that I must first read about it,etc., in order to prepare properly. Spent too much time doing that and so I miss the last big BTC rally, too. But nothing to worry about, our time is gonna come!