I suspect the incentive is less here as headway plays have margins of their own and planned obsolesce cycles to ensure continued revenue streams. Don’t forget Facebook resisted advertising for a long time and Zuck was ideologically opposed to it until they needed it to survive at all because they found no other monetization. I have a theory meta is enthralled with the idea of hardwareand its ecosystem precisely because it gives them an out from being dependent on ad tech. Even the oculus line is more about App Store, subscription revenue, and hardware margin and afaik has no ad surfaces.

Imagine you are driving or using a power tool or cooking with these on and an ad starts playing.