The Buffalo Bills haven't earned a lot of bang for their buck since 2000, reports the calculator brigade over at NerdWallet.com. In their analysis of American pro sports wins and payroll, the Bills placed in the bottom four NFL teams and 86th out of 92 total pro franchises (embedded below) in payroll efficiency.
Looking specifically at the NFL rankings, the New England Patriots outpaced the Bills by almost a 3-to-1 margin in dollars spent per adjusted victory (chart below). The formula for adjusted win totals gives each team a season's worth of victories for a championship, giving the Patriots a huge boost for games they "didn't play.