Nope been there, done that, not as simple as you seem to think, many advantages and disadvantages comparing caravans and motorhomes.
e.g. don't always need to take the car so say we have a few days near Edinburgh, York or many other places can park up and use bus to get into the city, also much quicker to set up on site and pack away so can move much easier to different areas and because it's set up ready to go at home we can decide to go away at an hours notice and also tend to use it more in the colder months.
A caravan with similar space and facilities is heavy and needs a sizeable towcar so when towing my previous twin wheel with my GLC I got less mpg than I do towing a citi car with the motorhome and then travelling around the area in the car use twice as much fuel. With the motorhome and a high driving position the journey is also more relaxing and the little car on the back is so insignificant I fitted an extra rear camera for peace of mind. You do need a C1 licence if over 3500kg of course.
so it would be cheaper, lighter and much more logical.
Can be but often isn't. In this case because it is a quality vehicle is was expensive but the combined cost of my car and previous caravan was actually more not including the extras I needed for the van.
I do still have the car of course but wouldn't have bought one as powerful, heavy and maybe not 4wd.
You pays your money and takes your choice, pros and cons with both and down to circumstances and very much personal preference.
I'm assuming, please correct me if not the case, that you have little or no personal experience when it comes to touring caravans or motorhomes so I'll take your comment at face value.
PS
In case you might think I'm telling porkies ( as if you would :wink: ) here is a pic of my van in 2018 in Galloway.
... :roll: :lol: 
