Taco Bell's prices are absolutely through the roof, too. I'm not seeing the "decent price" at my local TB that you're seeing.
They always have a combo that’s cheap and rotates monthly. And like you said they have a few cheap value food like Bean and rice burrito which is also one of my staples.
Also you’re supposed to use the apps if you’re price sensitive. I work outside all day and couch surf without access to a kitchen. I never look at the actual menu of any place if there’s an app available. Apps also let you see prices between different locations.
However almost everyone I see go to any place in the real world is always buying stuff just looking at the default menu prices.