Given that comment, my assumption would be that you haven't eaten at many food trucks in NYC. The food at some is downright delicious, while others it is crap. If I'm eating at a truck, it's because either (a) I need something super fast and the truck is closest/fastest, or (b) I like what the truck sells, or (c) I like the idea of portability and I don't want the only other portable options, or (d) the smell of the grill attracted me, or (e) etc... None of that equates to paying more/less than I should anywhere else.