Retail? No way. Unless you're talking about those 1 oz vacuum bags of burnt yellow-green bud that appears to have been grown in a hydroponic stew for $100/ (hoboweed; spray-painted hemp :D), I haven't seen prices remotely close to that. Not even quality halves at that price. Not even in Colorado, and Colorado is the best bang for your $ in the USA.
*Fall harvest prices might dip that low.