Lindy effect and universe’s tendention to settle to one monetary standard.
And! That Monero as I see it cheriches itself to be the only real cypherpunk’s money. But at the same time that inevitably means that it will stay a niche thing.
And that’s fine by me. I can imagine a world in which I stack sats for stability and savings and am using Monero for privacy.
For me personally it’s the only real altcoin.