I can see this might be turning into a Quester thread.
IMO, when it comes to a “price/performance value proposition”, the Quester is absolutely overrated.
Questars are valued for reasons other than on a pure price/performance scale. Questars deliver: portability, an observatory in a box, convenience, the elegance of a beautiful and functional instrument, quality optics, craftsmanship, pride of ownership and many other more intrinsic attributes that Questar owners will, I’m sure, add. And judged on those criterions, Questars are not overrated and are much valued by their happy owners.
Back in the day, Questar offered its beautiful compact design as an alternative to the 3 and 4” F15 achromats of the day, which in comparison to the small and compact Q were behemoths. Today, as an alternative to those long FL achromats, the apochromatic refractor, with its versatility and more compact tube, has mitigated Quester’s value proposition.
Would I like to own a Questar – you bet! But only if someone left one to me in his or her will. I happen to value other things more than what Questar offers. But many others appreciate what Quester offers as being of value and just right for them.