yeah its included in the price. However, its clearly linked to the quality of the case. ie, the better the case, the better the cable management, the better job PCS can do. So, if you get a smallish low end case, with a high end system inside, the cables aint going to be as tidy and as "managed" as the same system in a top of the range case would be. - If that makes sense.
i'd, also argue that it depends on what PSU you choose too. But i think that just me being picky.