Tony's Hobbies in Baldwin Park, California. Its about a 20 minute drive on I-10 going east from downtown Los Angeles. He just moved into a big building there from his old smaller location in La Puente where they had been located since 1985. Great hobby shop, awesome staff, they carry all the American brands (RC-10, Losi, Traxxas) and most of the Japanese brands. They also carry R/C airplanes, gliders, helis, boats, micros, rockets, and plastic models. They also have a new indoor offroad dirt track where short course is the most popular class going over there right now. I also race 4wd buggy class there but the competition in that class is not as stiff. Normally just 5 or 6 of us with 4wd buggy. Short Course class always has a full grid of trucks. Everything raced at that track is all 1/10 scale electric. Here is a link to their website...
Ask for Tony and tell them Ken sent you.
http://thobbies.com/