The initial expense of a motorhome whether it be a new or Used one is a massive expense for most pockets. Any Motorhome owner will tell you the value of a Motorhome only goes down. On top of this they are very well known for very high maintenance bills, plus the added bonus of Insurance, Tax & MOT.
Most Motorhomes sit on thier driveways for 11+ Months of the year. You also have the storage of it, and these days unfortunately the worry of it being stolen. Of course owning one is also nice and we all get quite attached to our Motorhomes, but being practical, Rental is a much cheaper and less hassle option for 2/3 trips a year.