We definately have some amateurs here... Allow me to school you all...
Wrong! There is no such concept in home automation.
Rule #1... If you have it, you need it..
Also wrong! There's no such concept as a hoard in home automatiom.
Rule #2... Unused devices are considered a spare parts. (at least as far as the wife goes).
Wrong again! You need three hubs to be considered an enthiousiast.
Rule #3... Real developers have a hub specifically for testing code. In this case, you will need 4!
So much so learn... I'm sure you'll all get there some day..