The rarest soda bottle from where I live (Portland Oregon) is a gravitator from the late 70's. It says "Levy bros" Portland Oregon" on it. I missed a mint one that sold on E-bay a few yrs. ago for "Buy it now" 75 bucks. At the time it was worth 4 to 5 hundred. Who knows now. Probably a thousand. I couldn't resist E-mailing the seller to tell him how much he messed up. As a consolation I bought his other gravitator from Sacrament CA for 75.