The WAR chip and EAT chip are NOT the same thing or even close.
The thing I really like about the WAR chip is you can have a few different tunes loaded and switch between them on the fly. So I can run the 'economy tune' while I drive to the track (25mpg's+) and then turn the knob to 'track use' and rail it to death on the track...(more HP)
To each his own, but having multiple tunes on deck seems like a great thing to me. (and nothing against EAT chips...they are a great product)