Residential Frig / Dry camping

"AllegroD" brings up a good point. I talked to a new coach owner recently that asked about my solar panels and where I got them. He explained how he camped and I suggested he just add two more batteries. He never thought of that and realized that two batteries was much cheaper than a bunch of solar and fit his needs.

So, you really need to look how you'll use the coach. If you spend weeks at a time boondocking in the desert, go solar. If you occasionally boondock for one or two nights, you might be better off with just an extra pair of batteries.