At the Celtic music festival in Grass Valley, California Utilikilts and their ilk outnumbered wool kilts 20 to 1. I did not see any solid colored wool kilts or any Irish tartans be they national or county. Attendees included locals who enjoy a very active music scene as well as folks who follow the ren fair circuit. For a festival including tremendous Celtic musical talent the crowd was not overtly Celtic. Although there were numerous faires and wood nymphs. It looks like Utilikilts are alive and well among the casual ren fair crowd.