I was stationed over in the Philippines for a couple years back in the 1970s. I was recently digging through some old Exchange sales brochures from my stash (Exchange = BX, PX, NEX) and found that the 7000 was a Special Order Item. Exchange selling price: $228. The Eight was listed in the same brochure for $258. The 7000 was prominently featured - the first receiver listed and two pages with pictures, and touting the "Awesome 260Watt Power Output". After the 7000, the receivers each get only a half-page write-up: next page - 5000X, 4000, then next page - 2000X, and 1000X, then finally the Eight (This distinguished new receiver) shares a page with the bottom of the line 800. Curiously, the 7000 and the Eight are the only receivers listed as Special Order Items. BTW, the AU-999 is listed in this brochure for $174 and matching TU-999 is $147!