Arlington (WA) Information request

Helllo,

Fisrt, thanks to everyone who helped with my earlier "Seattle Advice"
thread. Our schedule dictates that Thursday, July 7th is our aviation day.
We plan to be in Arlington before 9:00 a.m., leave during the airshow
between 3:00 and 5:00, and fiinsh up our day at the Museum of Flight's free
evening (we figure we'll be near burnout so the MOF evening may be a
scouting trip) .

My question is aimed at the Arlington veterans. If I buy tickets in
advance, my $12 tickets cost $21 each with the service charges. And, rather
than being mailed to me, I have to pick them up at will call. So, I suspect
that before 10:00 a.m. on a Thursday, I should skip the "convenience" of
will call, and buy tickets on site.

Am I correct? $18 extra for the two of us for will call, or buy on the
spot?

Thanks in advance.

Curtis (cj)