There are two sides to wishlists. On one hand, they help you keep things remembered. Like my list of movies to see. It does really help when I am in DVD club. But on the other hand, you have to always update these lists when things change. Otherwise, you are increasing your chances of doing something twice. Like me watching “The Missing“. I don’t really mind watching or good movie twice or having beer with friends twice a week or something. But “The Missing” is not my favourite film (although it is pretty good). And that leaves me with an bit empty feeling.
Moral: keep wishlists updated or get rid of them altother.