You just don't get it OP, the reason for why other hodl other cryptocurrency besides bitcoin is from the fact that there are some altcoins out there that can make you a hefty sum if you just sold it or you've bought when they were cheap and some people in the community have an ingrained thing about them that they can't afford to miss out on things especially for those that have seen bitcoin grow more than $0.1, they just don't want the idea that they miss out on the next bitcoin, that's why it's still popular to invest into altcoin because of the fact that you might be able to buy one that would make you rich and turn your life around.