Everyone dream is to have a very huge portfolio even though we all can't achieve same goals due to financial differences that's why holding for long-term is very important especially for the shrimps, whales are financially very capable of buying lots of Bitcoin but if they can hold for long to get more even when they've achieved what most shrimps wishes to then I see no reason why shrimps shouldn't hold for more than a decade or so, Bitcoin has given every class the hope that it's a futuristic investment opportunity so with that being said it not something I'll advise anyone to stop buying even when they've reach their target, like you said one can still reset their target and continue going, their's no harm in doing that, so far their's hope that Bitcoin would keep improving therefore Bitcoin believers should keep buying and holding take Blackrock, Microstrategy for instance, they keep buying than selling and they'll definitely get their reward if or when Bitcoin gets to $1m in the future.