I don't know which I would stress out more over. I could make new wedding rings if I needed to, (and I even have some of the same gold left, because we saved the sprue). I could replace a Kindle or even (gulp) an iPad if necessary, and everything is backed up. The cell phone would be no big deal--it's pay-go so someone could steal 150 minutes, which would be annoying, but they can't steal anything more.
But expecting to have the magic book to read and then not having it--expecting to have the cell phone capability and then not having it--that would be stressful. Like if you twisted your ankle while traveling. It's not that it won't get better, it's that you really needed that leg *now* darn it.