I'm trying to reduce busy work in managing our campaigns by consolidating small specialized adgroups that receive very few clicks into larger adgroups. My arbitrary cutoff point is 40 clicks. Anything smaller will get consolidated into a larger adgroup, i.e. golden widgets gets put into widgets. I'm tempted to set the cutoff at 100 as none of the adgroups receiving less than 40 clicks have actually made any conversions. Not that they won't eventually.
What have other people found to be effective? What are the fewest clicks an adgroup can have before you actually lose money because of the extra time you spend managing it?
