From daily necessities to things with resale value, there are a variety of reasons people steal. You can also typically tell what is stolen the most often based on what gets locked up and requires staff assistance to unlock it.
I don't know about you guys, but Cane's Sauce from Raising Cane's has to be the best chicken dipping sauce on the planet. I'm pretty sure it beats Ranch, and now, you can buy a knock-off version of that delicious, orangey, peppery sauce at Walmart...