Most of the time they are not worth the hassel. I will do work that my Realtor neighbor refers me on but I do it directly for the home owner. Stay away from RELO companies as well, they work similar to bank owned properties. I used to be an agent and they get stuck in the middle and is a hassle for them as well, the good ones will make sure you get paid.
I've never been skydiving, but I have zoomed-in on Google Earth really fast.