I'm in IT and one of my responsibilities is purchasing. I've been using a HTC Mogul for nearly a decade. It can do everything I need for work. Email, RDP, GPS and so on. I can play some games on it, take pictures, manipulate excel spread sheets, listen to music, browse the web (surprisingly still), read books etc. I've opened my big fat mouth and said I don't need a new phone to be productive to underscore that it is the user of the technology and not the technology itself that matters. I support people who only want to buy the next new thing because it is new with no analysis of what new features would be helpful. An improved user experience should be the catalyst for new technology purchases. So, I'm stuck not buying a new phone because I can't make the argument that I really need it.
I also know that when you get a new tool you learn new ways to use a tool that hadn't occurred to you before. I will get a new phone because I want to switch my personal challenge from one where I am figuring out how to do what I need to to on my phone to figuring out what I can do differently than the way I did it before. I want tap into some of the newest creativity that isn't available to me on my current phone.
Of course if I win a phone, then I don't have to justify all of this to anyone, especially my girlfriend (I can be long winded).