Well I purchased SMG (as well as GHIII) for my 23rd birthday (Nov 23rd .. damn I'm getting old).
I am an old school gamer: think NES and SNES. The last Mario game that I personally enjoyed was Super Mario World as Mario 64 did not do it for me.
This game, however, lives up to the Mario hype. The visuals, the music and the physics are amazing. It is almost enough to bring some tears to my eyes. I don't know if it's because it brings back the sentimental moments of playing the original Mario with my father on Christmas morning when I was a little kid. Maybe it's because this game is that good; in all likelihood it is a little bit of both.
Anyway, I don't want to ramble on but I did want to let the gaming world know that this game needs to be played. Although I'm only a few hours in, imo this game is better than TP. Hell, it might be better than OOT.
Hope everyone had a happy thanksgiving. A Mario game has arrived that gives a nod to the originals while taking it into the future, happy playing!