True, but back in the 60s they were a darn good value.
(according to Morgan Spurlock I should have died decades ago....)
If you went to McDonalds in Virginia or Missouri OT California you knew what to expect.
You got inexpensive food, consistent across any venue, and served quickly..
No one ate at McDonalds because the menu was exceptional. It was cheap, fast, and predictable.
There is a market for that. but the market is not because they did anything exceptional.