For a 10 minute event.
From the LA Times:
With the cost of Air Force One put at around $100,000 per hour, plus the other planes carrying Secret Service, vehicles, Marine One etc., CBS' amazing Mark Knoller estimates that the trip cost American taxpayers between $500,000 and $1 million.Why? For a photo op.
That's as much as $100,000 per minute of speaking time.
In his brief appearance, the president uttered 1,990 words at the microphone (he had tickets for a Washington Nationals baseball game to make that night).
That works out to $502 per word and $32,258 per paragraph.