My standards for a good LBS:

1. If you tell me you'll get something on order for me, don't forget to order it.
2. Don't nickel and dime me. If you have a no-BS return policy, take the return without griping about it.
3. Remember me - if not my name, than at least my unusual bike or something about me.
4. If I come in and ask for 'brake levers', try to sell me what you think is best for my applications. If I come in and ask for "Tektro R200A's, in black", don't try to sell me something else just because it's in stock, order the dang Tektro's.