For those considering, this is the third Mazda we have bought in crystal white pearl. The paint does well here in Florida (heat being a factor), keeps a great glossy look and hides splashes and dirt fairly well (though not as well as a grey, silver or champagne color). Some don't like it simply because it is white and I can understand that (red and black are far sexier!), but it wears very well.
While I ended up with Brilliant black, my first two choices were the copper red mica or the black cherry mica, but it had to have a black interior, which was impossible to find when I was ready to buy. The only one I found sold minutes before I got to the dealership.
We originally wanted a silver car - reflects heat and doesn't show the dirt - but fell in love with the Copper Red/Send Leather combo. We haven't been sorry.
I liked the darker colors, they make the CX-9 seem a little meaner, but I happened to be shopping on a hot day. The dark ones on the lot were very hot to touch on the outside, and fairly hot on the inside. I could lay my hands on the White Pearl, and it was fairly cool to the touch and the interior was much cooler.