Various QEs around propelled the fiat to the moon. Add to that various other money making legal and semi legal moves with, and having extra money, as a number, not a value, had to flow somewhere. So it did, one of the speculations being housing, another one Bitcoin, etc.
You don't hope for a "massive crash", but some form of taming the markets and removing liquidity should (we'll see how this will be played out) occur in the next 2-5 years.
At that point of time, Bitcoin, sadly, may be the first in the line of high beta toys to go out of the window as the rest scrape for the exit (BTC network is limited to around 7 TPS or therefore).
Meanwhile, buy the dip, to the moon, etc.
LPT: If you can't disengage that much on emotional level from it, at least hold your btc on an exchange that converts striaght to USD, and make sure you can put your order in asap when things go south.