A lot has been said for good food places like Lick's, California Sandwiches, St. Louis Bar and Grill, and Il Fornello. All of these places have multiple locations.
But don't you wish places like Thai Shan Inn would expand too? Is there only one cook who knows how to cook their pad thai? It's a pain to get to Eglinton West when I'm all the way in east Scarborough...to make things worse, they only open for dinner...and the neighbourhood isn't the greatest either.
There's also Schwartz's in Montreal. One location still.
But I guess there's a mystique about a good food place with only 1 location. Everyone flocks there. Where else are you going to?