A "hot dog bar" is the perfect solution to not feeling guilty about serving "hot dogs" at your next gathering. Let's face it, we all love outdoor grilling (especially for a crowd), however, if Ribeye Steaks for 20 are not in your budget, this is a great, creative alternative. Have your guests contribute the side dishes and you will have a great interactive, food-friendly party. Of course, you can also scale it up or down by the quality and types of hot dogs and buns you serve.
There will obviously be some pre-prep work, but that's better than slaving over a stove during the party. I would set a large table with cute bowls for the ingredients of each hot dog combination. Then I would print instructions on how to assemble each one. Your job will be to have lots of buns and hot dogs coming off the grill.
There is something here for everyone's taste and the kids can still have their plain ketchup and mustard dog...no need to make something different.