Ether has a market cap of $450 billion, and that doesn't count all the other tokens running on the Ethereum blockchain. It's been running since 2013. If you call that a "boutique coin" based on "pump-and-dump" then clearly you've either got a highly biased or highly ignorant view of cryptocurrency.
If that's not obsolete, I'm not holding my breath on Bitcoin.
There are technical flaws in Bitcoin that could literally crash it if they aren't patched out before they become exploitable, as in it's at zero value and will never recover. That's not something that can happen to gold.