I replaced a heavy astro refractor recently with an MM60, shave a kilo off. Also got a much lighter tripod (less stable, but much easier to carry) to save another kilo or more so walking about a lot is much more pleasant. (Found my bird guide was almost a kilo too… !) I am still happy to lug about my 4kg binoculars and a proper tripod, but only when I’m likely to be more static. With the MM60 at 45x you need the fine focus and the view dips in brightness. I found myself running a little below that and pushing to max only when I felt I needed the reach. For more power I’d suggest a bigger scope so the view doesn’t dim too much. Of course on many days the heat haze will prevent you going that high. You have to decide how much you want to carry and where you observe and with what weather. As you note it shows hugely more than 8x bins, that themselves show much more than no binoculars.
I really like your last sentence. Sometimes i struggle to appreciate what i already own and tend to look for the next "better" option. For me being "movable" and "lightweight" is the key - i guess.