Super Mario Bros also only sold about 2.5 million units in the first several month after release. Baldur's Gate, for example, sold almost 6 million in 2 weeks. The NES sold 2.5 million units in its first year. The Switch sold 13 million. Even the worst selling modern console, the Xbox Series X sold 8 million in the first year. While individual game prices have not risen, the total number of sales has dramatically increased. So pardon me if I don't think the cost of games not rising has been a problem for publishers and developers of AAA titles. Their real problem has been putting out good content that enough gamers want.