I absolutely adore my NEcron Codex. The price was the same as the regular book. I think the Spacemarine one was so high because it included the "How to paint Spacemarine" book on top of the rule book.
It is a very slick presentation, has additional illustrations, many of which are the color version of the black and white ones from the paper book. The 3d models are a nice touch, but the ability to just tap an item and have its rules pop up makes things super easy.
As for Apple, I detest them, but when my Droidx bricked after the last Android update, I went with an iPhone. I prefer the iPhone in almost everyway. Combined with my iPad, one of the best electronic purchases I have ever made, it is so easy to do most things. What I dislike is that I can't just use it as a mass storage device. But it is easy to use, very high quality, and integrates with the phone very nicely.
I do hope Samsung kicks Apples fucking ass in these court trials. Apple didn't create any of the devices it is suing over. It refined them, but they act like they created all of it.