Oddly enough, I'm one of those weird West Coasters who likes the noon kicks, even though it's 9 AM for me.
I get to sit around, have my coffee while watching Gameday, and then get right into football. Why wait until noon and waste the whole morning on non-football activities?
Likewise, this means that the "Primetime" games are on at 5:30 PM, which is pretty much prime football-watching time. I don't necessarily want a game to kick off at 8:30 PM and not finish until midnight. If there's a compelling Pac12 After Dark game, I might stay up for it, but having a 5:30 kickoff that finishes around 9 PM allows me to wind down and go to bed. I'm a man. I'm 41. Staying up until midnight is a pain.