A good local bike shop is like a good local coffee shop. Other than the coffee, people go for the atmosphere and the staff, who should know the best time of year for Peruvian beans but don't rub it in if you can't taste the difference between brewed and pressed coffee. The same principle holds for bike shops. The employees should be able to direct customers to the best frame but not make them feel dumb for not knowing the difference between Presta and Schrader valves. They should spend as much time tinkering on their own bikes as they do on customers' but explain it in a non-technical way. Transit Bicycle Co. has such a staff. As it says on their website, "Air and advice are always free." And, like the best coffee shops, Transit offers an intimate environment.