I've got a 2008 Kona Jake cyclocross bike that I've used for nearly 9000 miles, including three seasons of CX racing. I'm not using it much these days because I got a 2013 Jake for commuting and I'm using a 2008 Major Jake for CX racing, but the bike is still in good condition. (FWIW, I weigh around 200 pounds, so life hasn't been easy for this bike.)

I think you'd be hard-pressed to find a CX bike that wouldn't last through years and years of commuting.