Why I switched back to an AT&T iPhone - Jonathan S. Geller

http://www.bgr.com/2011/03/16/why-i-switched-back-to-an-att-iphone/

I mentioned this several days ago, that the flood to Verizon due to the availability of the iPhone would eventually produce a class of consumers that realized they had left ATT to make a point but encountered the fact that the difference between most wireless providers is not all that noticeable. Further, you begin to encounter problems with Verizon that you did not have with ATT. Eventually this evens out and ATT begins to win customers back.

As wireless providers have to install heavy and expensive equipment to bring you wireless service, none are perfect. They deliver exactly what the industry demands and to become perfect is to become Lucent, having installed billions in equipment that was uneeded and obsolete within two years.