you're right, no top level logic would help you settle on any specific price, hence you need to engage with actual reality instead of simply noticing one party that benefits while ignoring the other that also "ultimately benefits" and "needs the platform to run apps on".
You, of course, want to be their feudal lord and get access to all their customers by right while also requiring them to pay a tithing of their hardware sales to you since you advance "their ultimate benefit" (they wouldn't sell any hardware without software)
