Yes, the '72 Veneta show was a benefit for the Springfield Creamery - a Kesey family operation (still, to this day). Among other items, they make Nancy's yoghurt which is fairly popular here in the NW. Also, I'm being picky here, it's the Oregon Country Fair, there is no Oregon County. As far as Furthur playing the fair, I don't see that happening, there's not a big enough stage at that specific venue. What will probably happen is them playing at the Fairgrounds sometime outside of the Country Fair dates, like the first Furthur Fest in '96 (Mystery Box, anyone!).
Those who hear not the music. . . think the dancers mad.