Wow, that's just downright obnoxious. He says he knows all about headphones, so does he have a Head-Fi account? Anyone who thinks they know all about headphones should at least have a Head-Fi account; it kinda makes you legit because, well, you're on Head-Fi. XD
That, and maybe I could pay him a visit (to his account page, of course).
Sennheiser HD7 are $300 and are different... http://www.amazon.com/Sennheiser-HD7DJ-Professional-DJ-Headphones/dp/B00I117M2O/ref=sr_1_1?ie=UTF8&qid=1399073861&sr=8-1&keywords=HD7+headphone
They are closed so you shouldn't compare them to your open headphones. Also are foldable and come with different cables as well as a carrying case.