we did touring van when i was younger, and get to borrow my mums motorhome now (a campervan would be one without a cocktail cabinet )
if you have a freestanding awning with motorhome, you don't have to pack up to drive around - and it really depends how much you'd want to drive about. Most of our holidays involve choosing a site with plenty in walking distance, and not moving - though we quite often take the car too.
benefts of a motorhome - great for
*smaller sites (easier to maneouvre) with dificult access more possible
*touring in europe easier
*overnighting easier
*much more pleasant drive (no snaking)
*reversing possible!
*motorhomers are a friendly bunch and you often get invited into other peoples vans for a nosy.
*no planning restraint on where you can park it (as it is a vehicle, there are some houses that caravans can't be parked outside of)
*just turn the key and drive....(ok, turn the key, wait for the diesel to come alive, then drive..)
if you have a friend with a motorhome who is willing to lend (even if they didn't let you drive, just parked up for you and let you get on with it) you could get a feel for it.
i think look around as many as possible to get an idea of the size and layout you want before you buy - think about sleeping space as well as daytime chilling areas.
don't forget - good weather is not a given!
whichever kind of unit, i recoend the camping and caravanning club membership as it more than pays for itself in terms of deduction from the rates of its sites.