Does it bother anyone that the "affordable" meal in the food court costs the same today as it did 15 years ago? Doesn't that say something awful about the food and/or the companies providing it? Maybe food shouldn't be so cheap. It didn't used to be.
You don't really want to think about how McDonald's (et al) has maintained the same items at the same $1 price point for the last 20 years. You also probably don't like to think about the reality of how McDonald's (et al) has gotten away without wages increasing much over the same time period. I'm not a "super organic food nut" nor am I a "raise the minimum wage to infinity" nut, but let's just consider that these issues are interrelated.
Bottom-end wages are static, but so too are bottom-end prices. In a healthy economy they move upward slowly in lockstep. It is a chicken/egg problem - pressure has to come from one side or the other to get both moving. Demanding a $7 lunch is, more or less, demanding a $7/hour minimum wage. You can't have it both ways.
I remember 29 cent hamburger tuesdays and 39 cent cheeseburger wedensdas at Mcdonalds growing up.
Prices have gone up drastically.