I'm a tech guy, and as such, I really want to be able to buy all the great new tech that keeps coming out. I could use a new ultrabook. I'd love a Kindle Fire. I'd love a 10" tablet (not an iPad). And that's just the stuff off the top of my head. But I don't need any of that stuff.
I think this spins into writing, too. There are many times where I want to have a scene or am attached to a great piece of prose, but it just doesn't belong. I don't need it, so it needs to go.
Sometimes it really sucks to do the necessary thing.
And I really want an ultrabook.