I have 3 trailers, 2- 10k GVW equipment trailers and 1- 7500 GVW enclosed trailer. In Mass they cost 230.00 for the 7500 and 260.00 each for the 10k ones...each year plus yearly 39.00 inspections and yearly excise tax. What is the downside to registering in Maine @ 100.00 for a 5 year tag?