http://espn.go.com/nfl/attendance/_/year/2011
Year, win/loss record, home attendance:
2006, 3-13, 93.7%
2007, 7-9,94.3%
2008, 0-16, 84.5%
2009, 2-14, 76.6%
2010, 6-10, 87.3%
2011, 6-2, 98.3%
The Lions went 3-13 in 2006 and still sold 93.7% at home games. Before 2008 and 0-16, they were still making money, still close to selling their home games. Look at 2008 and since. A 10% drop in home attendance is up to $3-5 million. That's why they were in the red. And that was a result of the team being bad and fans being fed up with ownership and management. The team has gotten to a 6-2 start this year, and attendance is up to 98% for home games. The Detroit economy has been as bad as it has been the previous 3 years.
So how can they sell with the economy still being bad?