Manufacturers often have several product lines. They can make ones for vendors as well as ones intended for direct sale. I see no reason to bash retailers, vendors, etc. In fact, it is best to have a separate retail line with different features & functions so that 'all bases' are covered.
There are several manufacturers who sell direct and have items in the $10K+ range. Just look on Audiogon. I believe there may even be a few here on AC. Google will pick up many as well.
Why people answer as they do: Assuming that people who buy high ticket items are ignorant most of the time is inaccurate. Getting to the next level of performance is expensive! If someone wants the latest & greatest and can afford it, then it is well deserved. Having the means to do so is no easy feat and you can't take it with you....so enjoy! Many answers had concerns about diminishing returns on investment. I believe those concerns are valid, but it may not always be the case. As the price of an item increases, there should be an aesthetic improvement. Detailing comes at a cost. We have a double edged sward: Unless something looks a certain way for a price, they will not purchase it. In order for it to look the way they believe it should, the price increases. In the world of high priced goods, a balance has to be made between performance & aesthetics.