Sometimes price are set at an outrageous position. I've seen housing furniture sold at a ridiculous price. There were 3moogle rugs being sold. The first was 100k while the other two were over 530k. There's no reason to even try to sell something that high, period. Also, realize that people tend to splurge on unnecessary things too. I bought a vortex couch for 10k only because the price was so low, although I could make it myself. There were other vortex couches listed for over 100k.

A seller sells their ware door a price they believe can move. Why should they care whether their competitors would rather keep the price at a certain level?