that will get used a total of 16-18 times a year
No. TCF (and any potential Vikings stadium) will be used much more often than just for football games.
they're not moving anytime soon-both because they don't really have anywhere to go
Los Angeles? Portland? San Antonio? Sacramento? Columbus? Las Vegas? None of these other than LA are very realistic, but they're all possible if the league and the city wants a team there badly enough.
the NFL isn't stupid enough to abandon the #13 tv market
Riiiight. Just like they weren't stupid enough to abandon the #2 (LA), #6 (Oakland), #10 (Houston), #17 (Cleveland), and #21 (St. Louis) markets in the recent past. Never, ever underestimate the greed of owners and league executives. By the way, we're #15, not #13.
that sells out every game
Huh? Were you even paying attention last year? If not for Fox, the Vikings wouldn't have sold out a lot of their games last year. It has been this way ever since they idiotically traded Moss away for nothing.
you cannot dismiss the possibility of an expansion to TCF that would include enough ammenities to make the Vikings happy with the state and Vikings splitting the cost
Actually, I can dismiss it, because the Gophers will never, ever share TCF with the Vikings on a permanent basis. Ever.
As much as I would hate to see it, the Vikings moving somewhere else is a real threat. If they don't get funding assistance in the next 2-3 years, they will start looking around. I vehemently disagree with pro teams sticking their hands out, while putting all the profits right back into their pockets, but that's the way the world works now. Team owners are, with few exceptions, underhanded, greedy bastards, and that's largely how they got to where they are. But you can guarantee the U won't lend them a hand by offering to share the stadium, nor should they. The move to the Metrodome was regretted almost immediately, and we've all been waiting for decades to have our own on-campus stadium again. That's not going to be taken away by the Vikings or anybody. And if that means the Vikes end up leaving, I, for one, will never watch the NFL again.