They’ve barely raised their prices in the last decade, they’re actually pretty fast, and there’s nearly always a bunch of people queued up.

Depends on the location too. For my location everything on the menu is $2 more than it is in the nearby, similarly-sized city. And there's a high quality Wendy's right next door.

I'll take good Wendy's at half the price of Five Guys.

Of course everyone is doing tiered pricing. You either use their apps or pay double. I think half of it is to get the app on your phone, and the other half is simply to make you jump through hoops for lower pricing. They all want to charge obscene prices, and then if you object, give you an option other than not going there. "Just install our app" could just as easily be "pat your head while standing on one leg and rubbing your stomach, and we'll give you 40% off."