No one is forcing any of you to buy anything. If you guys don't like the price, then don't buy it....simple as that. You don't need to whine and bitch about how much someone is asking for something....no one really cares what you think.
Just because you got a good deal on something, doesn't mean that everyone else will be selling it for the same price.
From what I recall, the $10 seat was in pretty crappy shape (which is typical for a samurai seat). This seat looks to be in pretty nice condition....actually damn nice condition, for a samurai seat.