$318 for a Mazdaspeed Type 1 spoiler. I don't know going rate, but that sounds reasonable to me.
http://www.ebay.com/itm/Mazda-Eunos-...2c68fb&vxp=mtr
This Garage Ohno stb he has looks pretty sweet too!
http://www.ebay.com/itm/Mazda-MX5-MX...item338ddb6d50
Good stuff here. Capuccino washer bottle sold already.
http://forum.miata.net/vb/showthread.php?t=558856
Axis power racing carbon fiber goods
http://forum.miata.net/vb/showthread.php?t=558728