Old and rundown dome.  Fans aren't that enthusiastic

It's a dome therefore it sucks. Football is an outdoor sport!

The RCA Dome is a mature facility which continues to host a variety of conventions and the successful Indianapolis Colts. Despite being slated for replacement in 2008, the Dome has served Hoosiers well for years, and is still one of the loudest stadiums in pro football. I just attended a Colts game and I experienced a great atmosphere, even against a weaker opponent. The facility is well-integrated into downtown Indianapolis. The playing surface has been replaced for the 2005 season (was Astroturf, now FieldTurf) and the venue is comfortable for fans, with plenty of concessions and restrooms. I'll be sorry to see it go!