We live in Mi and have camped for years. When we started getting long TT's we gave up most state pars because of the smaller sites make sure you check and as stated out of staters pay more. If you want check out the casinos and many have full hook ups and even cable TV. I would suggest that you go to the UP and then down through Wis. Stay away far away from Chicago. Do use 23 north there are many local campgrounds that can be fun check RVreviews for them. The Michigan welcome spots are very well versed and I think you can check out Pure Michigan on the net for free info. Much to do and see hope you have the time.