This is why a tool sharing service could work. Users would only be paying for the inventory management (an automated system, an app that keeps track of which to

This is why a tool sharing service could work. Users would only be paying for the inventory management (an automated system, an app that keeps track of which tool is in which users' home), and - optional delivery - via an uber like service. They would willingly contribute tools they already own to the library of available tools. The capital used to buy the tools will have already been contributed by the users who own the tools they share. In exchange for sharing, they get to borrow tools they don't have. Those who have no tools to offer to the pool would have to pay a little more, and the service could use collected money from those who don't have any "credits" for contributing tools to purchase the most requested but unavailable tools to add to the sharing pool. There would be no central place where the tools are stored, they will just be stored in the homes of subscribers to the service.