Yes of course. The price of the bitcoin really matters, as of now that the price of the bitcoin is really high, a lot people are more interested in investing in trading and I am one of them. I am now starting to invest in trading as I am thinking the possibility that bitcoin will get high the soon.
Right now the bitcoin price matters but probably not in the future that much, because the bitcoin price is only an indication how strong or wea ka certain fiat currency is compared to bitcoin, and that doesn't really prove anything about bitcoin itself. If you see Gold/USD, then you would think that gold is going up but really it's just the fiat currency depreciating over time.
Once bitcoin is used for payments, then no, it will not matter.If we ever arrive there, then the price of goods measured in bitcoins will begin to matter more to us, though in effect the same rules would still apply. You may think that gold (now measured in bitcoins and not in dollars) is appreciating while in fact it may be Bitcoin losing its purchasing power. That could happen too, for example, due to a Bitcoin whale instead of buying up dollars with his bitcoins now starts buying up, say, all gold across the town...
Bitcoin or fiat, nothing essentially changes