Why so many 16x70's for sale?

I've noticed that in Astromart's Classified Ad section (for binoculars) there seems to be quite a few Fujinon 16 x 70 FMT-SX binoculars up for sale. This binocular has an excellent (and well deserved) reputation for both its optical quality and reasonable cost (relative to its competition). So I'm kind of curious as to why they are offered up for sale fairly often. Does anyone have any knowledge or thoughts about this.