But remember, even the new Air Force One planes will be 747-8 !
So what? like the US are ever NOT going to go with Boeing (see the farce of the KC-45 procurement)
Hell would have to freeze over before the US government stopped using Boeing (or other US co.) for anything they can.
No problem though, so long as the president does not mind being second best!
Boeing did a study years ago and found that a majority of 747 buyers (80%?) bought the jet for it's range and not the size.
?? A380 has far greater range than the 747 (bar the 747-400ER with 30% less seats)
(Qantas use the A380 on the Dallas to Sydney route, some 8,577 miles, currently the longest non-stop scheduled route).