I think it's actually a pretty tough call. You can't argue with his performance historically, which is the bottom line I suppose. But are we paying for his past, or what we are currently seeing and how we think he will perform in the future?
My hesitation comes because it appears he kicks about the flattest ball in the league - both kickoffs and field goals. I keep waiting for it to bight us in a really important spot. He's been this way most of his time in Seattle though. But it seems like this year even his extra points aren't getting good height to comfortably clear the line. My season tickets are in the south endzone up just a bit, pretty much center cut. You regularly see opposing teams kickers have the ball reach near the top of the goal posts in height at some point during the flight of the extra point or field goal. With Hausch - even on short kicks, he's at about middle of the way up max height. And I don't mean where the ball lands. It concerns me that even from extra point distance, almost every single kick is just scraping over the top of the blockers outstretched arms. But, the guy has consistently produced.
I think the entire kicking unit (snapper / holder / kicker) haven't been real smooth this year, but that reflects mostly on the kicker - deserved or not.