A guy here at work just got his VCDX. I know that there are under 200 worldwide and he had to defend an enterprise vmware deployment design. I guess this is like the CCIE of vmware. Pretty cool to see someone pass one of these exclusive tests.
VCDX's are a rare breed indeed. I'm a VMWare user group leader and when we host our big one day events I bring as many VCDX and industry experts on my Ask the Experts panel as I can.