A friend of mine paid another friend of mine $80 in BTC for a trip we did about 5 years ago. That BTC, never touched, is now worth $5000. At any rate, it's definitely volatile, because the asset class is still a small (but growing) potato in the grand scheme of commodities markets. One thing we can be sure of, it will never go negative in price, unlike oil.
When you save money, do you save for the long term or for 1.5 months from now? If you save for the long term, and you're earning 0.5% interest on your $10K, how much less can you buy with it now, in terms of real estate, rent, stocks, commodities, etc?
Also, note it is entirely possible to invest on what's called a risk curve. You can allocate some portion of your savings, maybe 5-10% as a hedge. No need to go all in. Maybe 0.5%. at any rate, your savings account has cost you 50% or more in purchasing power for meaningful assets in the past 5 years. While you've gained a great deal of purchasing power if you held crypto.