Once tried a baseball card museum in Cooperstown. After a couple of years; he realized it was not a success.
There have been many BB Card and memorabilia exhibits and thus that has been done! IIRC; Mark Macrae was involved with a PCL exhibit earlier this year. If not, Mark correct me on exactly what the PCL exhibit entailed
I think a BB Card museum would have to be interactive and not just pictures of cards. And where are you going to find interactive activities from on baseball cards.
That may be the biggest issue of all. Museums nowadays need to be interactive and we don't have enough video history to make them that way.
Maybe in another 20 years or so; we can have a small building with a rotating type cards; Hobby HOFers and some interactive activities involving the PLAYERS, not the collectors
Regards
Rich