Welcome to the forum. Arizona is a perfect area for a Class B. Lots of scenic places few other RVs can take advantage of easily in boon docking off grid.
This year we scoured west Texas and the Rio Grande border and visited 5 state parks after two weeks relaxing in South Padre Island. We didn't get over to Arizona as in past years. We are still just a Winter Texan as we are called. My brother just bought a home full time in Rockport, Texas on the coast. My wife's cousin bought a winter home in Phoenix but still have a summer log home on a lake in northern Minnesota. I can't give up Minnesota winters yet though I am reduced to snowshoeing for winter activities. My skiing days are over.