What baffles me is how the Packers front office actually swallowed the whole, "Mecca of football" bit that John Madden always talked about, in Green Bay. Although it is a destination point, it's not like Mecca, where millions of people repeat the journey there, to worship at the house that legends built. It's a football stadium, and to most people, having been there, seen it, and enjoyed what it offers, never return. It's no different than seeing the Gateway Arch in St. Louis, and never heading in that direction again to see it again, because it doesn't do anything.
During the off season, the stadium restaurants are nearly empty, the HOF, and Pro Shop are the same. As for the hotels, barely operational, at best. It's just not the place for summer activities on a general basis.
If it fails, it's because they've alienated the local people and businesses, driving them away from the zone. That's the last thing they should allow to happen. The Packers are supposed to be part of the community, not a competitor to them.