While this is true for digital items like this, saying nobody ever does even if it's on sale that means you don't know actual stores work. There is a point where keeping an item in storage on site or in a warehouse is getting too expensive and items are sold for less money than they were purchased/manufactured for for. For example with something I have experience in myself: In the clothing business this happens on a large scale, the costs of this are covered by items that did actually sell. Items are sold for 2× up to 10× the amount of money they were purchased for in able to cover all the costs.
