They do sell tat, but they do also sell a bunch of other kit, mainly components, that people would want to buy if they weren't cheaper online.
Mind you, when it's a choice between buying it from China via fleabay and waiting two weeks, or walking ten minutes down to Maplin and paying 120% of the price to get it now, well, then you have to decide how much you want that cable/converter/component etc.
Biting the hand that feeds IT
