I think iTMS albums are overpriced. When individual tunes are 99 cents, I think an album's worth of them should be discounted to maybe $7 or $8, not $10 or more. When the album price is the sum of the tune prices, I end up playing each 30-second sample and buying, say, 5 out of 12 tracks - why pay for the whole thing if I'm paying by the song anyway?
I'd like to see album prices drop so you get a good discount for buying the whole album. The record labels would have to agree to this. And then I'd like to see Apple institute upgrade pricing, so if you buy one or two tunes from an album, you can come back later and "trade them in" for the album by paying the album price minus 99 cents for each previous track you bought, as if you bought the album in the first place. That way, I don't have to make a once-and-final decision whether to buy a few tracks or the whole album. (I'm too cheap to buy the album later if I'd have to pay for some of the tracks twice.)
Maybe that doesn't suit Apple's "keep it simple" model, but I would buy more music if they discounted albums more and if they let you trade up, and they would make more money from me in the end.