I really don't understand why? Use year does not at all determine when we book trips, in fact that would be the last thing to influence us. In fact most all of our trips have been in your red area. In over 15 years of having DVC we have only taken two trips in the green area. With DVC ownership being 50 years or more, there is no way anyone will know that far in advance when their travel plans will be. Ours have changed over the years as we and our family have aged, school has changed and so have jobs. Just my opinion but I think people worry too much about something that has little affect on using your DVC for the long term.