Its the only way Erik, have one of each. A road bike Aaaand a mountain bike. You just can't really put good enough fenders on a mountain bike for road riding. Its not that I didn't love big red and put close to 2k miles on her last summer but dammit riding in the rain sucked. My new bike may be ugly and can only be used on the road but she sure can keep the water off me and the drop bars are nice since I have a head wind every night on my ride home. I feel like with fenders riding in almost anything is now possible.
Though last night I did eat it crossing some rail road tracks. My back tire slid out from under me and I got thrown pretty hard. Such is the life with slick tires and a less forgiving road frame geometry.