What's the most overrated or overpriced piece of equipment you own, have owned or come by?

This hobby of ours is extremely rewarding, but can also be very expensive. I don't mind paying the big bucks (if I can afford it) for better sound. But many companies out there take advantage of us poor bastards and sell us snake oil equipment at exorbitant prices. Well...This is your chance to share with other Audiogonners.

This is your chance to GET EVEN :-)