It depends on where you are. I live in Claremont and go out of my way to avoid Jax down the street like the plague. They are a concept shop and always try to up-sell you whenever possible. I've gone to a LBS in Upland off Foothill Blvd, and they seem to barely carry much of anything. Their store looks barren and almost out of business. Maybe it's just their business plan...who knows.
I prefer to go to Incycle in Chino. I never have a problem with them, they are always friendly and my roomate, SoCalBoomer has been in the store where they have down-sold a customer something because it fit his purpose better which is a total plus.
Incycle's number in Chino is: (909) 590-3515
The general website is:
http://incycle.com/