In Ohio you don't pay tax on purchase price you pay tax on payment. As far as miles driven well this year we've put about 3000 miles on motorhome. One trip to Savannah and a trip to Cincinnati from ne ohio. We make atrip every few weeks to state park which is 100 mile round trip. I also put about 6000 miles a year on my car so yes I don't drive a ton and no we don't travel as much as we like.
Basically I want the power of the diesel without the expensive repairs. I could get away with a gasser and that maybe an option.
It's all options really. I may buy another motor home. It's easy for kids to just get up and use the head vs stopping every hour!