It's interesting what you see while waiting stealthed at an idoc. One scripter in particular has an odd script that makes him stealth 5 paces north and then 5 paces south non-stop. When a house changes from greater to collapse he logs off but every time I've seen him this week he was doing the exact same thing. OCD or does that script sound familiar?
Anyway, tracking is worth it on your template just to break the boredom of waiting for a house to fall. Knowing how many, and exactly who, is at an idoc is good info!