Earlier in the semester I posted on a story stating that iTunes raised the price by 30 cents of some of their hottest singles. While sales have dropped 6%, some of the more popular songs are still selling at a normal rate. Because of this news, Apple can more than likely declare this as a victory.
To me, this shows that Apple can probably get away with raising single prices in the future if marketed right. They didn't raise the prices of every song, just the hot sellers. I would assume that they know that people are going to get the song they want given that the price isn't ridiculous. Raising the price 30 cents shouldn't ruffle the feathers of too many people. I know they don't ruffle mine.