Interestingly, in my travels around the country, the cuisine in the Costco snack bar changes.
For instance, we don't have muffins at our Costco. We have... Hot Dog Combo (w/ drink) Chicken Bake Cinnamon Churros Berry Smoothie Pizza
And that's about it.
Up north (Massachusetts, where my extended family lives) I've noticed that Costco has some damn good pretzels in place of Churros, and they've also got an italian sausage.
Of course, food discussion may be an ENTIRELY different thread.