I have never been in a motor home - just a caravan, and loved it when I was perhaps 40 years younger.
Nowadays, I would far prefer luxury, so would rather a hotel.
Admittedly a motor home would be very handy as you can stop at far more places and especially in the country of WA where towns are far apart, however I think I would still rather drive further and go to a luxurious hotel or motel!
Motorhome. We have done it in several countries and LOVED it. They are luxurious and convenient and have everything you need. The motor home parks are mostly beautiful, clean, happy places with all mod cons. Plus . . you have the freedom to go or stay wherever and whenever you wish. One vehicle that we had was huge because we had extendable sides so the lounge and also the main bedroom became almost normal rooms when we were parked up. Yep, loooooove me a motorhome :-))
I am willing to give it a try, especially in the remote areas of Australia, where there may not be any other way !! In remote areas, the next town could be 700 kilometres or more away, and there is still no guarantee of any 5 star hotels in these small towns in the Outback. I would probably give it a try, so you can stop somewhere for a few days, and travel where and when you like. It sounds like a romantic, gypsy way to travel around. I would only do it in remote areas where there is no other way, no other accommodation available.
Oh wow!!! Couldn't that be the best time ever?!!!! One big question would be about all of our beloved dogs!! You always mention your two, and then I also have 3 darling furry friends which I often mention, so it could be quite a circus, though huge fun!!!
I prefer the luxury of hotel/motel/resort accommodation now I'm older. The couple across the road from me are retired and own a Winebago and use it a couple of times a year. The major drawback with it is wanting to explore or go into a town as you have to uproot yourself from your site so they carry a couple of bicycles on the back to avoid this. That's okay if you are fit. The bonus is of course that you can park almost anywhere you like bearing in mind that it would need to be in a safe area.
Great fun and beautiful scenery. I will make you aware that you will most likely have to sign a contract saying you will not drive in certain places. A few places are a bit hairy for motorhomes and they will not want their vehicle damaged. It certainly didn't spoil any of our fun and we have done it about three times in NZ.
I enjoy the comfort of a hotel and the convenience of having a car to tour around in. If I want to visit a heavily populated place - Hotel every time. I think with a motor home you can be restricted once you are parked. No matter which I do not like living from suitcases and like to unpack once only.
In saying that- I have enjoyed a weekend in a motor home. The convenience of parking anywhere is wonderful and a motor home would be my choice for a more remote holiday. My husband's company builds four wheel drive motor homes and I think they sound brilliant and hope the time comes they need us to test another one.