Update June 4:
There will be no shirts available at the fly-in. Sorry.
The truth is that I'm tired of dealing with the shirts for a while. I've spent the entire last year peddling these things, and while it's great, and I really enjoy seeing everyone wear theirs to cool places, I need a break.
If I attend the fly-in this year, I'd like to spend it relaxing and visiting with friends instead of dragging that damned box of shirts around.