what goes up, must come down.
these ppl will cashout to fiat currencies in a heartbeat once this thing tanks. which will be brought about by a recession...because I dont think the landlord is going to want your Bitcoin to pay the rent.
The last deep prolonged recession when US unemployment rate was over 9% was in 2008. Bitcoin was birthed in 2009 and so was not widely adopted at that time. Since then, we have not had a deep recession that would've tested Bitcoin. So, when the big one hits (and it will) it's going to be a bloodbath for Bitcoin holders.
Good luck!