Within a few feet is different then being tracked constantly. Also, I can tell someone I am an analysts and consultant, sell them on the fact that I can interpret what that all means, and not have a clue. Means nothing without having a solid connection to my (or anybody's) reason for being wherever we are whenever we are there. (other then in the park or just outside) Within the park... Bingo... all kinds of uses for that information even if it is something as simple as which direction you go in at the end of MSUSA. Where you eat, what rides you do, what path you take, what your preference in food selections, purchases and specifically your location for the purposes of crowd control. Otherwise, it's like my knowing when Bob Iger goes to the bathroom. Might be a way to indicated prostate problems, but, otherwise and directly, I have no reason to know or care.