It's an iPod. They're not cheap. This does not mean that U2 is out to bleed every penny from their fans. They're not going to start charging hundreds of dollars for their concert tickets (yes, I understand scalpers might, but that's their doing, not U2's).
Think of it this way: if U2 teamed up with Mercedes-Benz to put out a U2-themed Mercedes, would you expect it to be only $5,000? No. It would be around the same price as a non-U2 Mercedes. You know - pricey. ;-)
I understand the collector's need to have anything U2-related. But sometimes you just have to let it go. Save your pennies, or wait a while and find a used one, but the world is not ending.
Repeat: The World Is Not Ending.
It's a piece of electronics that just happens to have their autographs on the back. Fake autographs, at that. And a poster. What else is U2-related about it? Certainly not the color scheme. The coupon for the online box set? If you're worried that you must have every U2-related item that's for sale, heck, you already have all those songs!
If you don't want to spend that much, you're really not missing out on much. Relax. Breathe. It'll all be all right.
And hey! New album in two weeks and one day! Now THAT'S worth getting all het up about. ;-)