You make some good points, I made some bad choices. To address: > Yes, I meant relative inside each state but phrased it poorly > With median price, I probably should have limited it to periods and states selling more than x items > And, yeah, Pennsylvania, and in particular the seller labelled "Goodwill Industries of North Central PA, Inc." dominates the market and should maybe have been excluded. I thought I'd get away with this by doing inner-state comparisons but it's still unideal