People are tracking ROI, and constantly testing new targeting parameters to keep eking out a few more points of ROI. A lot of Facebook Ad spend is experimental

People are tracking ROI, and constantly testing new targeting parameters to keep eking out a few more points of ROI. A lot of Facebook Ad spend is experimental (especially at that low of a price). There used to be a time when you could get real engagement for pennies each and build up a following of real people based on a few ads then not have to spend anymore and go off your organic growth and audience. Now the second you stop the ad spend your engagement drops to nothing.