Every collector your builder is working on is a builder that isnt upgrading a defensive tower or spell factory or barracks. Those things help you in all other aspects of the game. Up until I hit TH10 there was no time that I didnt have my builders working on defensive towers. I was never going to waste a day of builder time on collector when I could just find a couple bases to raid and get everything those collectors were going to get me. I also appreciate now having something for my builders to do for those days when I just didnt get enough loot to keep my builders working. Now with that being said if you are a bad farming and have a hard time keeping your builders doing things then by all means do those collectors.



