| Golf games are definitely great examples of a game the Wiimote adds immersion to. Tennis as well.
Baseball I'm kind of torn on... it works great for the "simplistic" Wii Sports version, but... How well will it work with a more complex baseball game where you're controlling your runners and fielders and all that? It might be left to more simplistic party stuff for that sport.
Like with football and Madden... it was really fun at first, but once the newness wore off it was basically annoying and started to detract from it.
Back on racing - even with arcade racers I'd much rather use an X360 controller or even a racing wheel. Wheels are just flat out more fun to play with period for me.
Also there's an issue of having enough buttons. Like on Need For Speed Underground 2? It works perfect with my X360 controller hooked up to my PC... but the Wiimote would just suck for it (for me anyways). And turning and all that shit with the Wiimote just seems seriously awkward in comparison. I think you might be alone on enjoying it more than a controller for that genre.
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