Cell service choice is very much an individual preference. If you are an infrequent user, you are really better off with prepaid service such as page plus cellular. Otherwise your choice should probably be driven by the coverage and services where you will use the most minutes and the availability of employer/other discounts. For contract service, I have had good luck getting miles and cheap phones twice through worldperkswireless (former nwa cellular store), operated by inphonic and later simplexity. Others have reported issues, especially with returns and more complex orders/number ports. Currently skymileswireless.com offers 4K with a contract.