Not to start a discussion of how labels treat their artists, but I don't think you can compare an SACD or DVD-Audio disc to the pricing of a CD just because both arrive on a 5" disc.
SACDs and DVD-A discs are re-engineered and remastered over many weeks of studio and Engineer's time. It's not like they're using the same Master that's simply burned onto a disc differently. And where CDs are generally expected to sell quite well, the hi-res discs are generally assumed to not sell well... so those remastering, packaging and distribution costs have to be spread out over maybe 3,000 or 10,000 units instead of 100X that.
I'm not defending ANYone in the music industry, but comparing the pricing is really apples-to-oranges.
