So they are charging the same for AoD, as others games that actually have high production values.
$25 for the dl version is far more reasonable and quite frankly appropriate. Even then I only paid $19 AUD for Mount & Blade an indie title that AoD would hope to match, in both quality and success.
As I've already explained, AoD is offering a lot more than just production values, things that mainstream games don't offer. If production values are the most important thing to you, buy any random EA/Activision game, don't bother with AoD. The reason the boxed version is $50 is because they want to have a really good color printed manual, which is quite expensive, especially in low volume, so they're just recovering cost.