I would say buy an AP if you plan on coming back within a year or specifically want to use the hotel and rest. discounts that are available with the AP. Otherwise, I know that a lot of European travelers buy a 10 day World Pass which may be a bit cheaper and may have one or two options that come along with it. Best advice regarding touring WDW. If your looking for relaxation, 8 days at the World won't do it. It is very easy to spend alot of time touring the parks and other sites, your guaranteed to watch your time fly by while your vacationing there. I would plan out your days and pick those things that you really want to accomplish. Make a separate list of would like to do items and if you find that you have enough time and energy left over to do them then by all means go for it. Happy planning.