On New Years Day I walked to downtown Silver Spring and in front of the Chipotle (which was closed for New Years) was a man handing out coupons for 2 for 1 burritos from Qdoba that is located 2 blocks away.
As economist I love this scene. It shows there is no burrito monopoly. It demonstrates the ice cream on the beach problem, where on a long beach two ice cream sellers should set up next to each other (see this old post)
Qdoba's 2 for 1 deal is also great news for those on the burrito diet!