arc introduced a 5w model a while ago, but only in a very limited run, because they weren't satisfied with it. they thought they could do better, and discontuined it until they could develope better technology for it. also, the current 5w stars don't have a very long life, which was a concern for peter.
the ls5 will be a 5watter also, but isn't scheduled to debut anytime soon /ubbthreads/images/graemlins/frown.gif