I am hearing disabled so the internet is a magnificent tool for me as I can easily communicate with others via every imaginable outlet... text, skype, forums, chat, etc. but data charges can be really high so I don't get to connect with others as often as I would w/ an unlimited plan.
Considering, I'd be really appreciative to take over your unlimited plan no matter how much upfront money it will cost to do so. It'll be worth it to me in the long run.