Sounds like we live in the same place. I do have a 40' terrace which helps a lot. In my "spare room" I've got a small drill press and router table I drag outside. A good friend lives a couple miles away and has a tablesaw in his garage and gives me free range there. I too think the "Rent-A-Toolshop" is a good idea. There were several gas stations in Detroit years ago that charged fee's for a hoist and heavier tools. Those are all gone now. The only issue I can see is unskilled people and insurance. I don't have any idea how you'd get around someone making a bad move and loosing a digit. A clever lawyer would find a way to come back after the workshop. Too bad. Maybe do a Workshop Coop. You know, get a group of guy's with the same mindset, skillset, and respect for each other's property.