When I have tracking service with my parcel I usually (mostly unnecessarily) check the location of my courier like 50 times a day. It is like a compulsion that I can't seem to do anything about. At least you track it in real time and justify looking at the screen, while my updates are one liners like - 'reached...here' or 'departed........from' and except my sudden born OCD to look at that tid-bit of information I have no reason to even log in :-)