Apuresound and PCX both sell these for $50 a pair. They used to cost $16 per pair direct from ODU, but ODU was told by Sennheiser not to sell them to anyone a few months ago, as they are technically a copyrighted Sennheiser design. Somehow Apuresound convinced Sennheiser to authorize them to get them from ODU, although it may be the case that they simply had them custom made, we don't know. ALO and Moon are also both working on getting their own custom made, at likely greatly-reduced prices. It's possible that Sennheiser will flip out and sue people using their design, which would be hilarious. I've been quiet about this for a while, but decided to speak up. This problem has been my nightmare for the past 2 months.