adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-TRAVEL","nativepaywallcategory" : "NATIVE_PREM-TRAVEL"};PETALUMA, Calif. — My descriptive powers, which I’d like to think are well-developed after years of pumping irony, fail utterly to convey the depth, breadth and sheer vertiginous volume of “Star Wars” ephemera on display at a converted chicken farm known as Rancho Obi-Wan in the rolling hills of Sonoma County north of San Francisco.