Yesterday I picked up the latest reissue of AMT's 1965 Pontiac Grand Prix and the parts pack dirt bikes set at Hobbies Unlimited in San Leandro, CA. It was my first time at that hobby shop and was very pleasantly surprised at their selection of model kits and reasonable prices. If you are in the San Francisco bay area I would highly recommend this hobby shop.
The nearest Hobbytown is in Sunnyvale, CA. They have a nice selection of models and finishing supplies and are very friendly. They have been open about 3 years and I am hoping that they make it. Three Hobbytowns have gone out of business in my area in the last 15 years.