There are just so many places where a car fits fine but even a small RV will have a problem fitting in. Sure you can tour Yellowstone in a 28ft RV, but many turnouts only fit 2 or 3 cars, so you may not find a place to stop and stare. Similarly you could take a small RV on some beautiful twisty curvy scenic roads, but there is so much more to see when your eyes are not stuck ahead of you with the RV. Big cities can be a real pain even in a small RV. And the list goes on and on and on. Perhaps with a 28fter (our first motorhome was a 28ft Establishment Class C...loved it) you can plan your vacations without a toad. But keep in mind, in many locations you may opt to rent a car for a few days and leave the RV at basecamp. Do consider also: you make basecamp, level the rig, put out the slides, hook up everything (perhaps focus the dish...not our thing), now you want to see a nighttime event in town, at the ranger station, nearby, so you must unhook, stow your gear, bring in the slides, and drive off for a few hours, only to repeat each step in reverse.
Just saying...Happpy Trails.
