Two years ago, my wife and I thought we were going to move back up to Michigan, where she's from. I downloaded and started studying the MI Fishing Guide. I found the "restricted" and "all-species" licenses to be a little confusing (not to mention the various seasons, catch and immediate release, etc....).
That MI has gone to one license doesn't really surprise me.
Your comment about raising money with a fee also strikes home. Here in OK, we have one license, which costs $20, but you also have to pay a $5 "Legacy Fee", that has never been clearly explained, at least to me.
I decided to save myself some money a couple years ago, and bought a 5-year license for $88.