Exactly just as you thought . Investing in valuable cryptos as a long term assets budgeting it to be one of inheritances that shall be left behind for your children is very much adored.
If it is Bitcoin, definitely, but not so much other altcoins. I am sure that with full lightning network deployment, massive amounts of capital will flow back into Bitcoin's ecosystem, where it rightfully belongs.
If we look at the main reasons for altcoins to have gained so much value recently, it's 50% Bitcoin's increased price, and 50% Bitcoin's incompetence when it comes to offering people cheaper transactions.
Granted, altcoin usage isn't peaking as how Bitcoin's usage is doing, which allows their transactions to be much cheaper, but that's something the majority of the people don't look at, or even know about.
They just see Bitcoin's transaction fees are expensive, and altcoin transaction fees are cheap. In other words, for them everything is black and white. It's a twisted form of reality, but that's how they see and experience everything.