Some cities are more diehard than others.
A home playoff game in any cold weather stadium is a must see. A cold weather team has a distinct advantage at home and pulling a team like the Saints, fair weather and a dome, is what teams like the Eagles, the Packers, the Broncos, and the Patriots play for. It's the way football should be played.
It's been a while since my team made the playoffs, but I can remember Bruce Smith walking around in subzero temps in just a t-shirt while Dolphin players, wearing parkas, huddling on the bench in front of giant torpedo heaters, looked in a mixture of awe and "this guy is crazy."