I'm pretty much stand at the same point with Hebiki. All company has good car, they all great. Some of them have great quality, some don't. Some got lots parts, some don't.
As for Tamiya, the quality is quite consistent, design is very up-to-date, tons of hopup. But probably the best thing is: Tamiya is the only company which cover whole range of RC car, all the way from novice car to pro car. Although TCS doesn't exist where I lived, but I know TCS is the only true racing series which going to help this hobby expand. For that, I support Tamiya.
And beside, since Tokyo is just something like 1,000 miles away from me, shipping via air is very acceptable....