Never believe into anyone's suggestion for altcoins. As per some crypto experts, 99% of altcoins will become zero value over the time and we need to agree to that as highly reputed altcoins go biting dust when a new altcoin will be introduced.
I have no doubt about altcoins going to zero value. Trust me, I've seen my fair share of 'very' promising altcoins that went to a near zero value. Altcoins like Mobilego, Propy and other silverware ICO startups that reigned during the the 2017 epic rally. But on a lighter note, Don't you think you're leaving money on the table by not taking advantage of some of these alts? And that's not something I enjoy doing.