I remeber thinking about buying Bitcoin when it was $1 and kicking myself when it went to $100. I was outbid on ebay when I was trying to buy something to mine Bitcoin when it was $100 and I gave up on the idea. Quite a shock to see it near $5,000. That's when I finally jumped in, just in time for the China crisis :) It's been good though, I've learned so much in the past few weeks.