Magnum Dynalab MD - 108

I went to look up the spec. for the MD 108 in response to an inquiry from a prospective buyer and noticed that the MD - 108 has been discontinued. Could this be the next Marantz 10B.
The Magnum Dynalab MD-108T is listed on their web site including the specs. Please see
I've always been curious why M/D's lead the pack in the classifieds for sale--are they really that good if owners want to dump them so often?