The reasoning behind the amount of tags....every few years, Mississippi changes the design of their tags. Long as I renewed my tag, I automatically got the new designed tag. Take the old on off, hang it on the shop wall. Years ago they had it so you could only get a 6-digit personalized plate, and then late 80's/early 90's, that changed it so you could get a 7-digit.
Two tags are out 'on loan'. One's at the teenage grandson's house. The other, (and Peggy, you should appreciate this), is hanging on the grand-daughter's dorm wall at The University of Alabama. WITH the understanding I get both of them back one of these days. At least both of them have some culture when it comes to music.