I want to get Super Mario 64 DS because it looks like it will be entertaining me for hours, and it looks much longer than New Super Mario Bros, but I was about how many hours it will take to beat the whole game. How many hours will it take if you play minimalistic-ly, how many hours if you go for all the Stars, and how many hours if you play to unlock everything, and collect everything (hidden stars, coins, mini-games, etc.) How good is the replay value? And about how long did it take you to play?
Thank You for all your answers!
BTW, Yeah, I'm getting it for Christmas!