I've had the good luck to regularly use - but not own - many of the 'nostalgia scopes' of the 60's and 70's - thanks to membership at Kopernik Observatory in Vestal, NY. That includes a wonderful Unitron 4-inch refractor, Tinsley 12.5" Cass, Cave 8-inch Cass, and Cave 8-inch Newt, Haley-mania era C-14 and 8-inch Schmidt camera, various SCTs, Celestron and Meade - and others (all eventually sold - not to me). I still regularly use their Astro Physics 6-inch F/12 Super-planetary APO - which I'm pretty sure was made in 1987 -- obtained for the observatory by Don Yeier - from an estate sale, based on a tip from RolandC!
I guess if I had to have one "nostalgia scope" - especially because of those S&T adds - it would be a 7-inch Questar - or maybe even a 3-inch.
However a good friend has a lovingly maintained a 3" Questar, which he purchased in the mid 1960's (refurb'ed at least once by Questar). He uses it regularly to image planets and the moon. One weekend a few years ago another friend of ours hosted a 'private star party' for about a dozen of us at his rural and very dark home observatory (SQM = 21.0 or better). I had my Obsession 20 set up next to the little Questar - which the owner was happily observing with. I said "Wanna see M-51?" Alas - one look at those beautiful spiral arms in the big Dob and the poor little Questar sat unused the rest of the night. --- but I would still like to own one -- or better -- the 7. Every year at NEAF I always go over to their booth and look for a long time at the latest Q7 Titanium -- knowing that it too would sit mostly unused next to my Obsession 20 -- but there would be nights that it would be my main scope I guess.
I also have my eye on a fairly good Criterion RV-6, complete with a set of eyepieces - except storage would be an issue - and the Edmund 6" was always a step up in my heart. Maybe I'll get the RV-6 anyway -- 'cuz I still can't afford a Q7 Titanium (or at least justify spending that much on a 'little' scope).
Edited by George N, 17 February 2020 - 01:22 PM.