Attendance? That's the proof we can't dispute to say interest is waning?
LOL, attendance is dictated by stadium capacity. There's only 3 stadiums with capacity over 80K, and surprise surprise those 3 stadiums teams are in the top 4 of attendance (the Jets and Giants share one). Even the sucky Jets are in the top 3, because....spoiler alert, their stadium holds more people. So the fact that Dallas has close to the biggest stadium in the league, and also plays AT the Giants every year, guarantees the Jets, Giants and Cowboys will all be near the top every year, even if nobody really pays any attention to them.
Of COURSE Jerry wants to pack as many people into his games as possible: more seats = more tickets.
The Chiefs, or Panthers could vault to the top of that list if they wanted to, they'd just have to throw in more seats