I've just been to a small, local exhibition, run by - http://www.hpw-railway.org.uk/ - in a nearby village. Mostly UK stuff, apart from one US layout.
Some really high quality modelling on show. Several of the layouts had both 00 and 00-9 sections.
I did notice that the DC/DCC ratio was about 50/50, but all of the DCC layouts were using NCE Powercab units.