Another reason no one mentions. Wii version came out toward end of season unlike XBox 360 & PS2 version. PS3 also falls under this distinction. The hot period had already passed on this game as most people played it under XBox 360 or PS2 version. I WOULD say Gamecube but by that time most people who would be GC players were waiting on Wii. Same case probably befell those PS2 owners who may have already owned it and saw no need for PS3 version unless being a collector.
Compare sales of Madden 07 on ALL consoles (and then do same with handhelds and then both groups together) and check sales rates figuring for time of release and circumstances therein.
Both Wii and PS3 versions sold fairly well considering they came out so late.
http://en.wikipedia.org/wiki/Madden_NFL_07
PS2 version was highest selling, BTW. Naturally.
John Lucas
Words from the Official VGChartz Idiot
WE ARE THE NATION...OF DOMINATION!







