Carbon rims = easy tube changes?

So I'm demoing some Reynolds Assault wheels and last night going downhill the rear tube got a nice little puncher (good old fashioned thorn) and it was the first time changing the tube on a set of demo wheels and carbon clinchers.  I thought it might be a little bit of a pain with the rim depth, getting the air into it, etc. but it couldn't have been simpler.  It was actually easier getting the tire on and off than with my regular non-carbon wheels.  Now if I could just figure out how not to run over thorns...