In the software world, we have seen things that used to cost a one-time payment of 60$ turn into a 100$ PER YEAR subscription [0]. I'm sure no manufacturer will make a subscription system that will make them less money. It will, in all likelihood, end up being an order of magnitude more remunerative for them compared to the one-time payment.

[0] https://web.archive.org/web/20150316090012/https://purchase.... https://www.youneedabudget.com/pricing/