Restarting this thread because of life changes. A couple of years ago, hip and back issues dictated a move from Swaro 30x,80 on an aluminum tripod to a Zeiss 15-45x,65 on carbon fibre. Even after a hip replacement, the latter is too heavy. I recently picked up a vintage Zeiss 15x,50 monocular that I could at least have in a daypack for walk-ins. At one pound it solves the weight issue, but even with a rest it is (of course) still shakier than a tripod-mounted optic. I find it useful as a "study" glass but not as a "scanning" glass. I'll be thinking about a way to use a hiking staff as a monopod (advice welcome).
So far, my binoculars have never been an issue. Not interested in exploring IS solutions.
My non-birding sister uses a vintage Japanese 7x,50 mono for world traveling as she is extremely right-eye dominant anyway and doesn't feel the extra barrel is worth the space in he luggage.