Don't be an ostrich with its head buried in the sand! Deferred maintenance is the single most damaging factor for homeowners when wanting to sell their home. Most cities have Truth-in-Housing types of required inspections to ensure that when a buyer takes over the responsibility of a property, that it meets basic requirements of safety.
As a seller, you'll expect and want to reap the highest price for your property. Waiting until you are ready to go live on the market could cost you. How? It won't compare favorably with others in better condition, your selling price may have to be lower as a result of its poor condition, and/or you will lose valuable market time trying hastily to make repairs while buyers move on to more appealing properties that are actually ready for resale.
Note this Yahoo! HOMES article with informative tips on how you can be a better homeowner and be better poised to sell your property for top dollar!