I wonder why they did not have the board pictured at the front and back of the box and use that instead of including a board !
Sure, who would buy a box with just the pieces ? .Those who would say " it might have been a little cheaper doing it that way ?".
Anyway, not a bad game but not much replayability imho.
I can't imagine how that would have really been practical/possible.. The inset riverbed would be difficult to incorporate into the outside of a box, not to mention it would be prone to wear/damage during shipment/handling/storage.. Also, with the pushing of the clear discs along the river, there would need to be some way for the two box halves to be attached together to prevent them from separating under the force of the pushing.. Unless the box were made in a book-style where the halves were already attached..