Would it be a good idea to buy a used locked iPhone from Amazon to then unlock it?

Want to buy a cheap iPhone

It's a bad idea.

Yea, you can.

Yes you can buy a locked Phone from Amazon.com and then unlock it. It's good idea.Locked Phones are cheap than Unlocked one… You can get the I-phone unlocked from network lock using the Remote unlock service.Buy the remote unlock service from the site http://www.mobile-unlocker.com/apple-iphone/rs2wp9/ and unlock it easily.