Yes, real wood garage door is a pain to maintain. You have to constantly upkeep to prevent the elements from destroying it. To begin with, real wood doors are pricey. Because of exposure to the sun, rain and big changes in outdoor temperatures, real wood doors will be problematic in a short time. The key is making sure the doors are properly sealed (caulked) and varnished with a good UV coating/sealant. But this is a big chore. I have to recoat my wood door every 9 months. For my new house, I chose Fatezzi wood garage doors (
Faux Wood Custom Carriage House Garage Doors). I think this is the best option for folks wanting the look of real wood garage door but not the price and maintenance headaches of real wood doors. They are made of synthetic material which will not shrink, crack or rot.