Obviously Bitcoin price; the amount Bitcoin is worth at a particular time, and Bitcoin usage; the rate at which Bitcoin is adopted and used. The above phenoms surely has implications, one may be tempted to as; which is more important? The interesting fact is, price affects usage both positively and negatively. An increase in price attracts high usage, and vice versa. Conversely usage also affects the long term pricing of Bitcoin. Price has short term implications, usage and acceptance has long term implications. From the aformentioned, I can conclusively say; Price and Usage are phenoms that can influence the volatility of Bitcoin
Usage and price goes hand in hand to determine the value of Bitcoin at anytime, both are important factors without which Bitcoin cannot be anything meaningful. I can say that Bitcoin usage is a means to an end which is price because it is usage that determines demand and supply which will give what current price will be. I can say that usage comes before price which is adoption, hodl and spending it, you if look at it from that perspective I can say that usage is more paramount than price because it is what drives volatility which determines whatever current price will be.