The HT by my house in AZ (not where I am most of the year) also seems to be biased towards Traxxas, but they usually have stuff for my 18T in stock.
Up on the counter they have I believe an S-Maxx, Revo, and the 1/16 Slash and Revo. Behind the counter almost everything says Traxxas, stacked up behind the counter are Rustlers, Maxxes, etc.
Theres a Quick's RC about the same distance away that I MUCH prefer, but my dad never takes me there. They have a huge selection of stuff, and the people there are much more educated about RC stuff.
Contrary to what people usually say about Hobby People, the people working at the one by where I am most of the year are friendly, helpful, and educated.
So yeah if you open a Hobbytown get less Traxxas stuff