I don’t know if it could be cheaper , it probably could be cheaper because if it will be more popular prices will drop (Economies of scale) , but i am afraid there will always be a price premium for FOSS friendly hardware because companies are losing their competitive advantage by giving away some of the work they do for free.
I always assumed its daily reporting of monthly active users. the nodeinfo format that is used for reporting the data does not show daily active users iirc (it is seemingly capable of reporting weekly users).