Sofas don't need constant bug fixes; they don't inexplicably stop working when someone upgrades their apartment with a new TV. Also, the up-front cost of a piec

Sofas don't need constant bug fixes; they don't inexplicably stop working when someone upgrades their apartment with a new TV. Also, the up-front cost of a piece of furniture is a couple of orders magnitude higher than most apps, which help keeps the retailer in the black until it's time for the customer to buy another, similarly high priced item.