Bought a pair of these this last week from an eBay seller - new in box, several available, for USD $175 with no tax and free shipping. Not bad!   My M-100s were in for repair (needed some screws replaced). I was temporarily using my old HDJ-1500s, but was appalled at how bad the sound stage was, and wanted something similar to the sound of my M-100s was, preferably more portable. So I settles on the T10is, which my first pair of high-end IEMs. The sound is awesome for their size, although in some songs the mid come across a bit too strongly. If you...