I sure don't understand why someone living in Michigan and registering a Class A MH would have to pay $1700 a year for registering with the yearly tags?
We have always lived in West Michigan and is where all our RV's, vehicles, and boats have been titled and licensed and it's very cheap. Except for the large boat/boats we'd kept in Florida for 19 years and yes, it was outrageous costs. Been RV'ing for 52 years now and had many RV's, boats, and trailers.
Our big Allegro Class A (had 3 of them over 18 years time span) was a whopping $250 a year for plates in Michigan because it's a motorized vehicle and needs yearly plates. Our big 3 axle Carriage 5th wheel (18,000 GVWR) was a one time charge of $250 for never expiring license plates (only way you can license them) and the one time title cost when new was $11. No other charges, impact fees, etc and no personal property taxes either in Michigan. The same one time $250 for our never expiring plates on our 29' Carriage Carrilite 5th wheel.
Single axle boat trailer one time never expiring license fee is $75 and we have 3 of them and one single axle 6 X 12 vee nose enclosed trailer. Just bought another Cuddy Cabin I/O in June 2016 and it was still $75 for the non expiring plate. Our double axle boat trailer was a one time $150 as was our 26' Sunlite Solaris TT. No plates required for truck campers as they are considered titled cargo on a licensed vehicle.