We have a couple of raised beds with rubber mulch. I absolutely love it for certain areas! We bought the rubber mulch at Costco and it was $8.99 per bag. It has a 5 year color warranty I think...maybe 10 year, I can't remember. Edit: I checked the bag and it's a 12-year color warranty!
Anyway, rubber mulch is only good for areas that you aren't going to garden in much, such as around shrubs, trees, or empty areas. It isn't a good choice in flower beds if you are replanting or dividing plants regularly because it will get mixed in with the soil.
I put down weed barrier fabric underneath the rubber mulch. This will be our 3rd year with it and it hasn't faded. It does smell like rubber for a few weeks when you first put it down, but the smell does fade. It no longer smells even when the sun is shining on it.
For the rest of our property we have decorative rock...both 1 1/2 inch basalt (dark gray color) and also Woodstone (which is slate I believe and resembles bark sort of, it's gorgeous). We used to buy mulch every year but got tired of replacing it every year. We love the rock...and also the rubber mulch (in areas you don't mess with).
Oh, and the rubber mulch does not float away or blow away. It's not too bad in early spring when I tidy up the yard and have to pick the dead leaves out of it either from our neighbors trees.