This headphone under the Marantz name retails for $120 USD, yet I got it from a major hi-fi retailer for $60. The review explains why it's worth having, for those who are willing to tweak the sound or try mod'ing it.
http://www.hifiheadphones.co.uk/community/threads/marantz-mph-4-around-ear-stereo-monitor-headphone-review.4550/