in all seriousness, it depends...
their system works, if you believe it and follow it.
in LK's area, there is a Nexstar company that is probably doing $10mil/yr between their plumbing/hvac/electrical...to them it's worth it.
just look at it like this...nothing in life is free, you pay one way or the other. You can pay $ to get all the information in a timely fashion...or you can pay with time, and get the information slowly as you make mistakes...
