Thats the best investment than having 99% of altcoins on your portfolio. I admit that ive made a really bad decision not putting bitcoin as my priorities in investment cause I was expecting that some altcoins would go higher like a boom. Mid year last year I started putting 50% of my funds on bitcoin and will continue this year hopefully.
Make sure we always hold bitcoin before any coin in our portfolio. I won't forbid investing in any altcoins, but don't let us forget about bitcoins and instead focus on altcoins alone.
I usually make bitcoin my top priority, and if I want to invest in altcoins, I only share a portion of my capital in a percentage that is not much more than bitcoin. And even if I want to invest in altcoins, I usually don't focus on one of my coins, but I spread it from my capital for at least 2 types of coins.