I wouldn't say they are overpriced but I think it is more a case that not many people have that sort of money lying around atm.
There are some good bargains on this forum , ie Munros 6 speed , Merlis clutch or my clutches , some cheap R33's but it's a case of who has the spare fold atm.
Cheers
Ken
Ohh and free bump leewah , just spewing cos I bought some minus hats and adaptors and paid close to the price you're asking