Having recently bought, but little used a 120 Equinox, I found this thread equally unsettling & inspiring.
Buying my beautiful-to-look-at, as well as through, refractor is another step up in lens rather than reflection aided viewing. The former started with binoculars long long ago.
Havinga Newtonian & a SCT, I would not contemplate that, even a 150 triplet could equal my C8 or 10" Bresser Messier for light grasp. But I could for resolution (what do close double star separations work best through?).
My 120 is next step up from a Tele Vue Genesis 100mm. The Equinox is still light enough to load into a car & take where I want to view, it is not a dob. I can fit the dog beside it.
Jules I hope you are enjoying your ED120 more! My next compact scope will either be a Mak or Goto drive fork mounted SCT - possibly an 8 again. The C8 is a good general purpose scope that will pick up DSO, has catalogues of accessories for adapting to different uses & my orange tube still has no dents. For an aperture boost but with the neatness fracs give, I recommend a SCT!