I'm a previous MD user way back 2001(forgot the model), now I'm back after years of having my NW-HD5 which serves me well through the years. With the availability of high resolution portable headphone amps and IEM's, MD is the ultimate source of high definition recording to complete the audio signal chain in terms of portability. Imagine enjoying the same music from your home rig away home.
I'm voting to bring it back...waiting for my MZ-RH1 from ebay to complement with my RSA Shadow Amp and Westone W4R & UM Custom (with PCM recording).
Maybe I'm too late to realize it!