Kinda off topic but when I did own both an N64 and PS1 we owned both Mario Kart 64 and Crash Team Racing and I gotta tell ya, Crash Team Racing was the better, more popular, and more played kart racing game, hands down, in our house.

I will say that Mario Kart DS is excellent though.

I will agree with those that say that if you're already an adult when you started playing the N64 (I was 29 in 1998 when we got one) I thought it was mostly a kiddie console compared to the PS1, a console I similarly have no desire to play again. Of course I was heavily into PC gaming in the 90's and no console was ever going to come close to the PC experience back then when Lucasarts ruled the planet and my gaming life.