I have unlimited Verizon 4G now and thinking about buying S4. I also like the HTC one design like everyone else but I think S4 is prob gonna win. In any case, I would like to keep unlimited 4G and thinking about paying full price to do so. Only issue is, when I do so, I will be off contract and Verizon could terminate my unlimited 4G anytime, right? They are under no obligation to keep me on unlimited, so what is to stop them from telling me to switch to a limited plan? It would suck to pay $600 bucks for a phone only to have Verizon pull the unlimited 4G right underneath my feet.