I am looking to get an iPhone 4 on Verizon's network now, in order to obtain the unlimited data plan. This will be a new cell phone account. They have the best coverage in my area, and there will be no 4G coverage where I live until at least 2013 (according to the Verizon Store). I do not think there will be much benefit to me to wait for a world phone (the presumed next iPhone bump) because I do not travel outside the US. I am trying to limit the initial cost of the phone to around $200, so I am not considering purchasing a new iPhone 4 32GB. Thus, I am considering whether I should purchase a new iPhone 4 16GB for $199 with 2yr contract or whether I should purchase a certified preowned iPhone 4 32GB for $229 with 2yr contract. Any thoughts on a certified preowned iPhone 4 through Verizon? Are there any advantages to a world phone for a US cell phone user? Thanks for your help and advice. Edit: Verizon allows 14 days to return the device if not satisfied for any reason.