When I first saw the Boeing VC-25 at Hickam airport several years ago, I was so excited because I saw it in the movie and this might be a sign that the US President was on Oahu.
As you know, the Boeing VC-25 is known as an aircraft to transport President of the United States. It is called "Air Force One" which is a call sign of the aircraft carrying the US President.
Then next time when I went to Oahu, I saw it again. I thought the US President must be busy traveling and the Air Force One must dropped by at the airport to refill the gas.
Then I saw it again. I thought the US President must be crazy about Hawaii where he was born.
On the fourth time I saw it, I finally thought the airplane couldn't be the Air Force one and knew....there are some VC-25 for the security purpose.
Also US Vice-President or VIP of the country can use this aircraft. So, VC-25 is called "Air Force One" only when it carries the US President and when US Vice-President is on board, it is called "Air Force Two", according to Wikipedia.
Since I knew this fact, I never tried to take photos of VC-25. I thought taking pictures of VC-25 was enough. I thought I could take it anytime...
This was how I missed to take photo of a real "Air Force One" on Decmeber 21, 2013. I saw two VC-25 but didn't take photo since I thought enough. Later, I knew President Obama came to Hawaii to spend a Christmas vacation.
Needless to say, Sartisfaction or feeling of enough is very important for the happy life. However, as for a photography, feeling of enough is not good. "Feeling of not enough" will make us take another shot which may be a very good picture.