Well, the fact that SMG and MP3 will have a bigger audience and in turn more sales due to more system sales doesn't really make their case as system sellers beyond their predecessors, now does it? SMG will be a killer app though. I don't know if it will do 10 million in sales, but its certainly possible. SMB, SMB2 (US and Jap combined), SMB3, SML, SML2, SMW, SM64 and soon NSMB all made it to 8 digits. SMS is the only main series Mario game to miss that mark.
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.