Here's why the flurry of activity....
I have had a bunch of scopes from 140mm to 300mm in the past dozen years. Achros, APOs, Newts, MakNewts, Mak Cass, SCT's. All top flight gear... The last one was the TEC 160. It seemed, however, I was repeating myself, more or less... A change was in the wind.
I got the itch for a BIG dob last year to break the pattern. 20-inch, top notch glass, bells and whistles. To pay for it I had to sell the TEC 160. So I did this spring. I got part in cash and the rest in the form of the Wirth 8-inch MakNewt, a scope which was never a part of my plan. I kept the Wirth foe a while, just to see how it was (superb!!). Then I sold it for the rest of the $ to pay for the 20-inch.
So, at this point I had only a 65mm AstroTech APO. The 20-inch won't be here until fall. Can you imagine a summer without a scope of general functionality? ... Even when the 20 arrives I will need a 'medium' scope for outreach and general use. Everyone with a big dob also has a smaller scope. So I began nosing around for something..
I was talking a bit more than a month ago after our monthly zoom meeting to the fellow club member to whom i had sold the AP 6-incher years ago. I asked him how it was going with the scope and his astonishing answer - "I haven't got it out yet..Wanna buy it back?" So I said, half seriously, "Same price?" and he said, "Yes" and I said "OK, then".... there was very little planning or forethought other than I knew it was a quality instrument and, size-wise, might fill the gap between the 65mm and the 20-inch...
A few nights with the refractor in my observatory led to the revolt of my old bones and the rest of the story lies before you in the world of CN.
What a hobby, eh?