Wendy's...Double Baconator Combo (medium): $7.99
5 Guys: Bacon Cheeseburger (which is 2 patties), regular fries (enough for 2-3 people) and drink: $10.57.
The size of the fries plus the quality of the burger makes 5 Guys a better value, at very close to the same price.
All I can think of was my bicycle trips to McDonalds around 1960.
Burgers 15 cents.
Fries a dime.