In all fairness

It wouldn't take a genius to figure out what is common sense, otherwise it wouldn't be classified as common sense.
When shopping for a pair of shoes, we would expect shops to vary in their retail price for that same pair. Shops which are clearing stock, tend to have lower prices. This is common knowledge thus shoppers spend time walking in and out of shops, comparing prices. Even when we are buying watches, we go back to the same shop, hoping that we become their regular customer and eventually will enjoy a better discount.
What makes a person think that they automatically have this privilege, without having some VIP/discount card?
If all the shops have this shoe tagged at $80, there is no reason why they should sell it at $50 just because a buyer could only afford to pay $50. In all fairness, we buy what we can afford - it's never the shop who toggles price according to the purchaser's affordability.
For a similar pair of shoe, there is a fixed cost price - and I'm sure if it's a design that's currently IN, the end price will be just about the same - especially if the shops are in the same building.
Therefore, if we take this and magnify it - my question is simple - the difference of $50 wouldn't matter much to the buyer, but when you add a string of zeros to that unit to read $50000 then it matters that you have overpaid.
In all fairness, that's why you have the original brand and the imitation, that's why we have apartments, public-housing and condos. The market has products for different buyers.