In reply to Blue Straggler:
I've always preferred binoculars. I find a monocular a bit annoying to use because my biology keeps insisting that 2 eyes are better than 1.
If I'm using either then I really want to see something well, so the monocular seems substandard. And I've never yet been anywhere where weight was a major consideration but there was also a major priority to bring either bi or mon mon oculars.
Interesting aside: my camera is good enough that I can just photograph something far away and then zoom in on the little display on the back of the camera to see lots of extra detail - I've used that to do ocular detail more than once in the past. You could check out the latest superzooms and see how mm of camera lens convert to magnification in oculars.