My goal has been to accumulate enough crypto to pay off my mortgage in the next major bull run.

I think many are planning similar and it isn't a bad way to go considering that after the mortgage is gone and if sold near the top, there is a little extra disposable income to buy the next bear, like you mentioned. I might do a bit of the same if i can swing it. The trick is to not expand life too much in the short-term so as not to eat into the gained potential.