Have to agree with a few other comments here, 'Down Under' same situation, if it wasn't for the RC side of things they would struggle, I'm fortunate enough to have two hobby stores very close to my house, both are well stocked with everything you need
I go online now and then to buy a few kits and aftermarket stuff from the US
Check out one of my local stores, now that's a hobby store complete with RC and Slot tracks.... http://www.hobbyhabit.com.au/view/page/5.html