Sun Life will never be as high tech as the new Cowboys Stadium, but not many NFL stadiums are. We aren't talking about a stadium that is a hundred years old or anything, it is 25 years old. Arrowhead is 40 years old, Lambeau Field is 55 years old, Soldier Field is 88 years old. Renovations to stadiums is nothing that hasn't happened before. Very rarely is a 25 year old stadium deemed old enough to be completely replaced.