Once we get past the wear factors on things like tires, I find this to be more a matter of choice and that choice often comes down to what each driver has done for experience. Driving a big old motorhome may seem impossible for some if they have never gone through much experience with other equipment where driving is just part of the job, not meant to be fun!
Your thoughts on how a vehicle of any type should rtide and drive will be different if you started with a tractor, moved to a hay truck and acombine that if the prior experience has been a cute little Mustang followed by something as big as a mini van!
I DO definitely want to check the alignment and balance on tire changes to avoid wearing them out too soon, but beyond that , my group of drivers has never really found much fault with the way any RV has driven, but we may have never driven many of the little cute things??
So with your question of why, I would not go high priced if I find no fault with what I have had!