No thats pretty much it,if you own a tag with anything interesting ,its worth more than every body elsies. I dont think!!!!. People are people and sometimes if things are in short supply they get GREEDY.I suppose we are all the same we try to make a buck or two extra.
It is the same in Georgia for the local tags,as you are in Michigan I have a property there and my motorcycle tag is Cheep.
In the UK we have changed the way our tags are made up,and when you purchase a new vehicle the tags are not very good ,its pretty much impossible to get any sort of name or anything of interest.
JJ