I never consider the price when I grab a bottle of wine for dinner or whatever. There's a group I don't want to age I won't drink, but be it pizza or a fancy dinner party, everything in the cellar is fair game.
I'm an avid cellartracker user, and half the time I don't enter the price I paid because for the most part, it has no bearing if I'm gonna drink it or not.
Though I do know people who use red, green and yellow dots on all their bottles, green for every day, yellow for getting up there in price, and red only for special occasions.