I just started working at a site that has military contracts and a fair share of classified material floating about, so I wasn't allowed to have a phone with a camera. No problem, I thought, I will just get a different phone.
Yeah. It turns out, they don't make too many phones without cameras anymore. I ended up with a Blackberry 8830. This way I can check my email from work as well, since most internet sites are blocked.
It's not that I'm so addicted to my phone that I can't go without it, but I don't really visit my own office too much, so I really have no way of getting emergency calls in any sort of timely manner unless I have a phone on me.