I also find his logic flawed.
"Because the replayability of our content is super strong. The consumer wants to keep playing Mario Kart. The consumer want to keep playing New Super Mario Bros. They want to keep playing Pikmin".
It really depends on the genre. Story related short games don't have much replayability. I'm sure the same thing can be said about GT5 and its good sales. People keep playing it or refrain from selling it just in case they wanna play it again. There's less interest in playing a story based game again. I don't know anything about Pikmin, but neither Mario kart or super mario games have much of a story. I don't remember the last time I saw a tekken 5 or GT5 game in the used games section of my local GAME or HMV.








