They're a premium part. You'll find them as stock bits on some of the European bikes. The reason you don't see anyone here with them is because we ride Bandits, so we tend to be cheapskates. Those that do decide to swap something, usually swap a better fork from a GSXR because they're cheap and easy to find. The other thing is if someone's gonna pony up big money for an aftermarket fork, they usually go with Öhlins, which is considered the ultimate.