Just as an example, we moved into our new house a couple weeks ago and were meeting the neighbors across the street. I had noticed he had an M GO BLUE plate frame, so figured that was a pretty good ice breaker, mentioning I was from Ann Arbor, did he go there? Was he from Michigan?
Nope
Not only did he not go there, nor was he from Michigan, he went to Penn State!
That's helmet right there.
I'm used to the helmets attracting the bulk of the non-alum fans, but usually ones from the area and/or ones who went to a smaller school, or a MAC school or something like that. But here you have a fan who not only didn't go there, didn't ever live near Ann Arbor, and didn't go to a lesser school, he went to an arguably different, albeit lesser, helmet school.
That's why I don't think these things are moving that quickly.