I don't frequent a lot of fast-food places, save Chipotle and maybe Subway once in a great while. Though I'm not thrilled with giving my dollars to places that sell animal products, we don't live in a vegan world, so I buy the vegan items because I feel that I'm at least contributing to creating more demand for animal-free food. In my mind, every little bit helps. Just as an example, I've been writing to Dunkin' Donuts regularly to get them to consider offering soy milk as an option for things like iced coffee, being that I like their coffee. I figure it can't hurt to try.