Well, it was 2010 7 years ago, Bitcoin was about a year old, the community was small, no-one really knew about it beyond those involved in the project, or at least they never thought about it. It makes sense that having purchased $5 of something that was essentially unknown at that point would make someone millions of dollars richer after a few years, assuming that the asset kept growing, which happened in Bitcoin's case.

I wish I knew about it before 2013, but that's life. Won't miss out on opportunities like this in the future.