I gotta argue against the games costing more compared to cola. A new Nintendo game in 1988 was $40 to $50. At that time hamburger was 99 cents, a value meal from a fast food place was $4, a house was $80,000, a new car was $10k to $18k, and you were pretty much a Middle class family if you made $45k\year. Some original NES games even hit $60 a piece.
So videogames are one of the few things that haven’t kept with inflation. In no small part due to more people purchasing games and less physical overhead, but that doesn’t take away from my stance. 40 years later and a game price has gone up by like $20.