When I read "carbon fiber is only for racing" or "carbon isn't tough enough for commuting," I just chuckle. If and when factories in Taiwan or Korea or elsewhere can automate and mold CF at a wholesale price point comparable to steel or aluminum, then you will see CF used for lower end bikes, comfort bikes, commuter bikes, etc. It may be a few years down the road, but the day will come. I mean, look around now, you can see how carbon is becoming more commonplace in forks, seat posts, handlebars, wheels, cranks...