There are a few coffeeshops in LA that brew four barrel coffee, I think it's a result of how Four Barrel mostly just sells beans instead of opening their own shops everywhere.
Additionally, Stumptown as well as Intellegencia are both owned by the same private equity firm that owns Peet's, Blue Bottle also got a ton of outside investment to allow them to grow as rapidly as they did, in addition to having a successful business of delivering their cold brew to peoples homes.
The thing about the food industry is that it has really high startup costs that take a very long time to pay off, so opening up a new store using the profits from existing stores isn't really all that easy to do without having a hundreds of stores already.
