We have been living the last 18 months without a microwave oven. It’s not that we didn’t want one, we just didn’t have any room for a microwave oven of any size. Our main use would be for baking potatoes quickly and popping popcorn.
To acquire the necessary room for placement of a microwave we removed the passenger seat in the RV and placed a small table in it’s place. This gave us the room for a medium size microwave oven.