People are invested in bitcoin in many ways.
They see good reasons to stick with it and most of them are thinking long term.
Things crash from time to time, it doesnt mean they are dead.
And besides that profit isn't the main focus for most of the old dogs of bitcoin.
Many people buy Bitcoin because of profit, They earn money by investing.The rising use of debt is one of the reasons.Banks are halting purchases of Bitcoin and other cryptocurrencies on their credit cards. Because of this many people attracted and want to buy bitcoin. I think bitcoin in future become much more popular.