they just seem like a pita to put a car on, other than that their cool
If you are, like me, going to be stripping your floors and coating them, they are worth every penny.
I've got some rust, and spots that I want to repair, and then recoat/paint the entire floor. Sure, its never going to be a show worthy floor, but it'll fix the rust thats there, and prevent future rust from coming in for a while.