The guidelines for changing the ATIS in the US are:
2-9-2. OPERATING PROCEDURES
Maintain an ATIS message that reflects the most current arrival and departure information.
a. Make a new recording when any of the following occur:
1. Upon receipt of any new official weather regardless of whether there is or is not a change in values.
2. When runway braking action reports are received that indicate runway braking is worse than that which is included in the current ATIS broadcast.
3. When there is a change in any other pertinent data, such as runway change, instrument approach in use, new or canceled NOTAMs/PIREPs/HIWAS update, etc.
The weather is changed hourly at 51 minutes after the hour or when there are significant weather changes. Those broadcasts made that are not the regularly scheduled ATIS's are notated with the term special.
Al, I think you are engaging in hyperbole. The runways in use do change throughout the day to maximize efficiency; but not every two minutes.
Let me try a different angle. If before every flight, while you were standing at the podium prior to boarding. There is always flight information, such as the flight number, destination and time of departure. If before every leg, a passenger asked what time are we supposed to leave? What would your reaction be?
