I noticed that, too.
To expand on that thought a bit more, I felt like there was a big contrast between the two parties where patriotism is concerned. The RNC speeches and crowds were overflowing with pride in and love for this country, even with its faults. They pointed out ways to make it better, but it was all pretty positive.
The Dems seem kind of embarrassed by flag wavers and "USA" chanters. The spirit there is more along the lines of "We're just one country out of a world full of countries, and we should just try to get along with everyone else, 'cause that's nice. And we'd like to apologize to anyone who might feel like we've ever said we were better than them, or more right than them. That was mean."
Did you see all the post-Denver pictures of the flags in the trash?
I posted on Twitter last night "Republicans bring their own flags."