The employer that was renting several things went public, and then could no longer deal with me as both a full time employee and a vendor. That was a sad day. They bought the equipment they were renting, but the monthly checks were a way better deal. I also had several other things of mine that I was using at work without charging them rent but didn't want to rent to them because then I'd have to share with others (I wanted them to stay on my bench). When I left the company, I offered to sell them that gear, and they accepted.