There hasn't really been any bull market in altcoins since 2014 (except for Ethereum).
Seriously?
How about Monero which got 20x pump a while back?
How about NEM, which got 20x too a few months ago, or SC which used to be 7 sats in January and got 170 sats a while back?
How about NAUT, STEEM, ETC, SYS, SDC, ...?
I love bitcoin, but honestly, how long does it take for you to get even a 2x profit in bitcoin land?
Good investment in altcoins does that much much faster.