Based on my own assessment dude, being open into other altcoins is an advantage now to invest, as long as you know in which of them are really have the potentials to give earnings to you in the future.
The issue here is how would you know which will give gains in the future, you can't tell me it's from the technology/ideas the project are working on because this days 90% of the project coming into the industry are just a replica of the already existing cryptocurrency with just a different name and marketing strategy to drive up the price of their token.
This reason is why altcoins aren't the best go to coins for investment as they're not as secured or theirs profitablity aren't as certain as that of Bitcoin. Bitcoin has a track record of always recovering from any setback it encounters but that can't be said about altcoins.