That is interesting. I am not sure that I would do it, but I could see using the 2 week trial to finish up a project with a cartridge that I wouldn't necessarily want but one thing on.
When I was visiting New Jersey, I found a LSS that was doing rentals. They had 3 day and weekly rates. Loved the idea, but the 5 -6 hour commute to the store would be a little much.