I've half-suspected that Harbor Freight does this. Doing the analytics could be a good business opportunity. I'm sure once the metadata companies (Amazon, Faceb

I've half-suspected that Harbor Freight does this. Doing the analytics could be a good business opportunity. I'm sure once the metadata companies (Amazon, Facebook) meet real retail (not just the high-dollar retail like Whole Foods), there will be interest in this measure of consumer's price awareness.