Yes, there is one in every crowd, and looks like i'm it!
I think the RAS is a far superior choice, unless portability is one of your main criteria.
Given the used maket for RAS, you can easily get one for a song.
Personally, I'd opt for both. A RAS and no bigger than a 10" non-compound miter saw. Price a 12" blade, ouch.
Yes, the RAS takes some more setup work, but its versitity is hard to match. Also, a RAS can take a dado stack. For example, a RAS with a dado stack is a fantastic choice for making tenons.
Jon Eakes wrote a great book, now a for sale PDF book, that takes most of they mystery out of the setup and tuning. Mike Duginski's book/dvd on machine setup is also very helpful. I don't have a Dewalt RAS (wish I did), but Mr. Sawdust has a book on that brand.
I have both a RAS and CMS. When I get to needing precision or more complex operations, the CMS usually comes up short.
RAS have a bad reputation for safety, but if you look at the details of the accidents most are operator error. Every powertool, sharp edge and even dull edged too can hurt you.
My worst accident to date was a dull utility knife. My friend got it good from a small drill press with a spade bit.
Thats my take, your milage may vary
Jim