Anyone who buys in now is buying in at an all time high. Same was true in 2013, and those people would have made a good return, but it's super risky. But damn nice to see bitcoin above $5000! I'm ready to do a little dance, except I've pretty much sold everything I had. Oh well, easy come, easy go.
I would like to have bought 50 bitcoins at each of the last 50 ATH's. In retrospect I would gladly have foregone buying the dips. But hindsight is great. I think we will see many more highs that will make today look small.