But should this stop you (or any investment firm) to seriously look at the profit potential here? What do you get for correctly calling the bubble in 3 years? Nothing.
Well, if you knew when the bubble was bursting, then there would be no problem!
Then someone says: "Look I told you so, I've been telling everyone for 2000 days now: This slot machine will crash one day!". And you say: "Ok. You were right. Guess the party couldn't last forever. Thanks for the warning!". Out of habit you play for 30 more days, but the rewards stay gone, so you exit with some nice profit.
Meanwhile, the other person knew of the existence of a highly profitable slot machine, while it was still profitable, but never actually played it, because they feared that one day it may not be profitable anymore.
Your example only works if you are regularly selling BTC as its worth increases. If you're just holding onto it, your gains are never realized.