That may be behind the Eero move to go subscription only. Could be good if implemented properly but much more expensive that just buying a high end router.
Plume just announced that you'll need to buy an annual cloud license for their new stuff as well. I just dont see this taking off as a business model. How large is the intersection of people who know give a high enough importance to router security with the people who couldn't roll their own solution?
Plume is the one that switched to subscription only. Eero plus is only extras, the eero’s themselves are still up front and subscription free.