Thankfully, Buffalo has better fans than that. I mean, look at Miami and Jax. They can't get fans in there even when the weather is beautiful... You're overreacting with the concerns about weather and fans. Even during the drought years, Buffalo was fine.
As far as cost for new stadiums go, the Pegula proposal is actually relatively low, so I don't believe they'll be pricing fans out. People fear the worst, but the Pegula plan is to be cost effective and keep the place rocking and roaring like it's always been.