There's a lot of marketing power in it, too. Not only do they get to offer big TVs for ridiculously low prices, it's also safe to tout benefits like a "150% price match guarantee", when they have the exclusive contract to sell that exact model.
Since smart consumers already know about the model exclusion trick that retailers do in order to offer that "150% price match guarantee", care to tell me why this particular kind of marketing gimmick isn't illegal?
There literally is NO WAY to obtain a price match and EVERYONE involved knows this. IANAL, but how this is not false advertising or fraud is beyond me.