Guys have ever thought that the replicas favor the big brands in some way? The best marketing that brands have are us "the consumers", the more people use a product, the more people want that product ... Seen from another point of view, more replicas equals higher sales of original watches.
The big brands, not only watch brands (clothes, jewelry,etc..) are so powerful that they can finish with the rep world, but they don´t do it for the simple reason of winning free publicity for their brand.
So don´t worry that the rep world will end soon, maybe will end some day, but not as soon as we think.