Beverly Hills, CA
For a traditional brick and mortar retailer, their prices on ink and toner cant be beat. You can find cheaper on eBay, but I've had bad quality experiences there. Ive used 123 refills for about 1 year now for hp refills and they do a fine job.
Parking is an issue though in the downtown la location, but they tell me they also have a location in Irwindale.