But given bitcoin's volatility, is it suitable for a store of value? I don't think bitcoin is suitable as a store of value, gold would be more suitable for this role. The value of bitcoin is very volatile, using bitcoin to store assets or save is not appropriate and too risky.
Then what's the main reason you buy Bitcoin?
Gold and other commodities price aren't that stable, you can check the price and you will see there was a dump during bad economy season. Bitcoin is also similar it's influenced with bad economy season, but there's 4 years cycle where the Bitcoin price will increase.
I believe most of people buy Bitcoin for investment which is a store of value, do you use Bitcoin as a currency?
You must distinguish between an investment and a store of value entirely different. To me, being a store of value means being stable, not too volatile, and always holding value like gold. Bitcoin is so volatile, and the future is uncertain, how can it be called a store of value or a safe haven?
What makes you so sure that the 4-year cycle will help bitcoin rise in price? Do you have proof, or are you just trying to infer from what history happened? It's all speculation, and nothing is certain, so that's why I don't consider bitcoin a store of value, it's a high-risk speculation.