10 pack of Sennheiser HD 449 for $365.50

If you like to buy headphones Costco-style like socks and toilet paper, you can get a 10 pack of Sennheiser HD 449 closed-back over-ear headphones for $365.50 with free shipping by Focus Camera on eBay. The listings twice correctly says these are closed-back but once it inaccurately calls them open back. This promotion brings then down to $36.50 per pair. They go for $48 when you buy them one by one at amazon.com where they average 4.2 out of 5 with over 200 customer reviews.