That people are fans of certain creations for which they are willing to dish out a lot for to stimulate their imagination and have fun constructing what they are fans of?
More specifically, peoples purchases are not governed by any economic logic but instead their emotions and companies know and will exploit this. I don’t care what the tolerance is on a Lego piece if I’m going to pay the price of a new computer for some shaped plastic it better be able to do my taxes at least