Used Koss SP540 Over Ears for $100 [updated]

On the other hand, you can get the closed-back Koss SP540 full size (over-ear) headphones in “Used – Very Good” condition for around $100 by Amazon Warehouse Deals.

The new condition sale ended: The closed-back Koss SP540 full size (over-ear) headphones are currently going for $130~ in the frustration free packaging option at amazon.com, with a limit of five. They are however in “temporarily out of stock”. The standard packaging is in-stock but at $150.