It's the bun
My taste in hot dogs is fairly ordinary; ketchup, mustard, sweet relish, onions will usually satisfy. However, the New England style hot dog bun really puts it over the top for me. I usually get a few packages whenever I am in the New England area and bring them home with me. I have been known to buy an inexpensive suitcase to check filled with the epitome of hot dog buns! My wife knows that when I head east that we will have hot dogs the day after I get home. Grilled and slightly charcoalled.