Let me take a different tact on this argument -
After owning a lake property and several boats prior to our MoHo’ ming days, we came to the conclusion of “use them or lose them”.
It seemed every time we went to the lake place for a “relaxing weekend”, we ended up working our buns off getting things cleaned up and finding things that didn’t work or quit working that had to be fixed on the next “relaxing weekend” when we had parts in hand.
Our friend’s who have a cabin in CO but live in Texas are selling that cabin for the same reasons - they've owned the place for 5 years and have barely spent 2-3 months/year up there. We went up in September to help rebuild their rotting deck entry, to help him install and reassemble his washing machine after the water valve assembly had frozen and cracked from the previous years freeze, and replaced the dishwasher control valve that I had identified as bad 3 years ago (but we had not been up there until recently to install).
And it seemed every time we got in the boat, as the boat aged, we were always finding something wasn’t working right or didn’t work at all. Or rotted wood caused by accumulated rain water because leaves plugged the drain at the transom.
Granted, many of the issues I mention above are caused by our own lack of follow thru or proper monitoring and care of whatever is being “set aside”.
And that’s where getting out and starting up your coach once a month or so comes in - it gives you a chance to discover and correct those things that could or would be more problematic if left alone for a longer period.
Rats/mice finding comfort nibbling that last forgotten box of cereal and then nesting in the torn urethane foam cushion material they gnawed out the seat cushions - better to find sooner than later.
Exercising the tires is better than not exercising as it helps to distribute the chemicals used to make the tire.
The damage done by varmints, whether they just find a place to live on the coach or find a way to breach to the interior can be reduced when caught early. And what damage is done can be easier to repair the earlier it’s caught.
So - for us - running our coach is as much about keeping an eye on our coach as it is for any other reason.