I depend on what you are doing with bitcoin. If you're investing in it, then yes. Because you need to maximize the price of bitcoin to get a profit in investing in it. However, if you are just exchanging bitcoins and buying stuff after, then you don't need to mind the price.
Exchanging your bitcoin for products or services is a way to trade your bitcoin and in any trade the price is important, when I want to buy something with bitcoin I wait until I see a price rise that way I get more bang for my bitcoin.