nintendo dreams

Good Morning,!
I woke up at 6:40 AM this morning to the sounds of my son-shine playing his Nintendo game in his room and he was already on World 4 of Super Mario 3!!!..I bought him the "regular nintendo" for his room and I told him once he gets profecient with that and takes care of it would i buy him either a game cube or PS2 but not until then...well I dunno what to do now, He is playing TOO much. I think he dreams Mario bros. *lol*
I really can't say nothin' when i was just a few years older than him, I did the same thing but I NEVER played like this on a school night.
I'm thinkin i should just take the nintendo out of his room every night..its not that hard its like 2 plugs to be unpluged from the machine.