I think 30fps is ok for some games (as example Uncharted 4 would be fine with 30fps) but every racing game should be 60fps even if it is arcade or whatever. The thing with racing games is that you might think "wow, that looks awesome" when you see a new track but after a few rounds the gameplay is all that counts and when you put hundreds of rounds on a track, a better feel is clearly the most important part. At least Nintendo realized that for Mario Kart.
But as long as people will recognize the look more as the feel of a game before they buy it, some racing games will be still 30fps for better marketing purposes. And since more and more people post their screenshots or videos on sites like Facebook it is getting even more important for developers to think more about the visuals and less about the gameplay.







