I have known someone who's doing the same he is just collecting token even though the token had turn to zero value he doesn't care less, Well maybe there are a number of people doing it because some collectors had a happy feeling collecting something, But this is digital money you will sure need to step out and sell some to gain profit, And particularly with collecting I am getting many token through airdrops and bounty, I am just gathering up token as much as possible then If I think that the price will drop I would sure sell that token but a small portion of if will sure remain, I think you can sure try it as a collector you can surely collect token that you like and gain profit at the same time.