Just a lil history of Sonic
Troy Smith from Oklahoma was a WW2 veteran coming back from
the war when he decided to start his own restaurant. He tried 3
different types and failed before he came upon the idea of the
drive-in with car hops to serve food. This idea was also used as a basis
for the restaurant in the classic TV show "Happy Days" however
they didn't use the name of Sonic. So in 1953 Sonic Drive-In was born.
As far as the OP's question as to why they advertise in an area where
there is no Sonic's. It's simple really. Sonic is a franchise based
chain. A New York entrepreneur can purchase a franchise and open
up their own Sonic in areas where there is not one, including New York.
So basically it's really advertising Sonic's food but to get enough support
and interest in a new area that folks will want a Sonic in that area and
somebody will buy a franchise and build one in that area. So I think
it has to do more with the business end instead of the food end.
It's called expansion projects and grows an already booming
fast food style of food.
I have eaten there many times and my favorites from there are
the Foot-Long Dog and the Chili Cheese Fries. From my recollection,
Sonic is the only national fast food stop where I can get both at the
same place. And I am very grateful for that combination even if I have
to spend a few extra nickels to get it that way. Besides the service isn't
that bad either as I'm always inclined to look at the nice looking female
car hops who bring me the food. They also bring me a tray that
can attach to my driver window which holds all my food.
I love Sonic's food and style and I am in no way affiliated with them
but a regular customer whenever I get the opportunity.
So if you're in New York and don't have a Sonic, I'd suggest it to be
a good investment to start your own Sonic Franchise as even in a
recession, people are still gonna eat fast food wherever they go.
Locals and just people passing through.
Hope that clears it up