There is no value proposition. This tech is designed by software engineers for the purpose of harvesting the maximum amount of data about a a given person while giving him/her the thinnest possible veneer of value proposition. That's why mechanical wonders like the million-function wonder toilets of Japanese fame are not pushed - they do not allow companies to harvest as much data about its users, while taking actual engineering skills to design - a no-no proposition for these smart device companies.