Why there is a tendecy to not include Game and watch sales? This is not going to the aythor of the thread, but generally speaking.
Do we even have concrete numbers on how many got sold?
Anyway, the reason is probably because the games are not exchangeable, meaning for another game you'd need to buy another G&W.
And if one really would want to be stingy like this, where are the Color TV Game 7 and 15?
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454