[halo]

Real-life stores do this as well - make individually profitable changes (local maximums) that eventually make the whole experience so miserable that you no-longer want to shop there. Direct upselling is the most obvious, along with constant messing about with pricing and offers, as well as constantly pushing lower quality expensive own-brand goods, but the one I notice most is various cynically high pricing of non-core impulse items around checkouts - it tends to stick in my mind as the shop being expensive.