1) Convenience of ordering, speed, & price > atmosphere (edit: for pizza joints at least)
2) Shorter menus
3) Goofy marketing gimmicks (aoki) help me convince friends to get out of their comfort zone and try new things. Instead of saying 'want to get some pizza' I can say 'did you know that awful DJ opened a restaurant in Oakland?? we gotta try it!'
4) it's just more efficient to expand the kitchen size than have more room for seating. The weather is amazing 11/12 months of the year, let's eat outside. Or more likely in our overpriced apartment
5) I get about the same enjoyment from frozen pizza as fancy pizza. They're both equally terrible for your health, may as well save a few bucks
Do you live in Ohio?
Dominos, Papa Johns and especially Pizza Hut are not real pizza. They're about the same shit as a grocery store frozen puck.
Try a real pizza place some time. For instance... If you're ever in Southern Palm Beach County in Florida, try Jack's Pizza. Or find a family run place near you...