Also keep in mind, the county/state are stakeholders in this for mere tax revenue purposes.
The Bills do feed state coffers by simply being in state.
If they were able to secure a 10-year lease deal in 2013, then I'm confident a deal will be reached on whatever the plan becomes.

— John Wawrow 🤷‍♂️ (@john_wawrow) May 23, 2018