I can now use my Bitcoin number to buy stuff at Overstock or book a hotel at Expedia. But if I use Bitcoin to buy $ 25 on the Overstock today, and next week Bitcoin prices will increase fourfold, I'll feel that stock is $ 100. If Bitcoin loses its price, at least I still have the stock to use.
Bitcoins are considered as a kind of asset, instead of currency, with great profit expectations later on.
For me,I think it's better to use fiat money in the meantime
in purchasing or paying bills like in some hotels while its price is still unstable and stuck on its current value.In that way you wont regret if bitcoins price will rise in the future.IMO,it is wise to hold bitcoin fo the moment and if necessary don't spend it for some unworthy things because sooner or later a sudden pump of its price will occur,who knows? and its a thing that can't be undone.