Normally I'm not one to say that a different game "replaces" a different one unless it really is just a straight upgrade, but now after the booster course pass in mk8dx, there's not really much reason to go back to this game other than the few tracks that aren't in mk8. While this game brought a lot of much needed new ideas to mariokart, they are all executed so much better in mk8 that it can be hard to go back to this one. On its own merit though I think this is a pretty solid mariokart game that is definitely worthwhile to play for fans of the series, but it's hard to recommend to more casual fans.