Any US Shows in Winter?

I personally feel that most of the deciduous trees look best in winter, late fall, or even early spring. But for some reason we don't have any 'major' shows during this period. I'd love to hear the reasoning from some of the admins/clubs of US major shows.

The 2016 Bonsai Winter Silhouette Expo is THIS WEEKEND in Kannapolis, NC, just north of Charlotte. This has been a great show from the start, this year there are twice the number of vendors than past years, a sign of great growth for this event. See link below...

http://www.winterbonsai.net/

the milwaukee bonsai society has a small silhouette show on feb 5, 2017

at the Mitchell Park Horticultural Conservatory, "The Domes"