That is the best argument for "spinoffs" that I've heard. Well done. I still think it's pretty weak though; the inspiration benefit seems unlikely to overcome

That is the best argument for "spinoffs" that I've heard. Well done. I still think it's pretty weak though; the inspiration benefit seems unlikely to overcome the lost efficiency, in general. And different people find different problems inspiring; some people can be inspired by practical problems (e.g. "how can we lighten the backpacks of trampers").