Well, as I see it, it is all a matter of cycles. I don't see much more upside im stocks, at least for the next couple of years. Cryptocurrencies however, as I see it, is only at the beginning of a major upswing. As mass adoption is beginning to kick in, more and more liquidity will flow into cryptos... Just think what happens when institutional investors start to build portfolios..
I hope this was the answer you were looking for, otherwise feel free to ask more questions!