You can accomplish the same thing with a regular rasp, but many people are not comfortable doing so. That's why I recommend the rider's rasp, because it's an easy way to learn how to do the roll without worrying about messing up. I don't imagine it's too good if you need to take a lot of hoof off. I don't use one on a regular basis, but I've played around with them, and they seem ok just for rolling the edge.
Tug on anything at all and you'll find it connected to everything else in the universe.~John Muir