Most things that people ***** about, such as off-disc content like DLC, keep games from rising in price. That's why games for next generation aren't looking to rise in price for the foreseeable future even though budgets are, because of these features in games. If you want games to lower in price, you need to accept directives like DLC, microtransactions, and the like. Which ain't gonna happen. But I don't ever see them lowering across the board; they'll stay the same, or rise. People are willing to pay these prices so why rock the boat. But hopefully they won't rise, but could do late in the generation.
Prices simply reflect budgets, too. Companies do need to figure out a way to cut development costs but, mistakes happen, and mistakes cost money. Can't help that sort of thing.
And if you really think about it, games are actually very cheap. The Dark Knight Rises, I got that for £10 on Blu-ray, for almost 3 hours of entertainment. I bought Battlefield 3 for £40, and it's currently given me 120 hours of entertainment. I got Counter-Strike for £20, and it's given me over 2000 hours of content. So, games are far from being too expensive.