image > more in map form by Frank Bi of Forbes Forbes ranking of the cheapest weed Sources: Forbes compared the price of an ounce of “high-quality” marijuana Forbes Magazine reports numbers reported by Forbes. The price of weed, as reported by Forbes Forbes The price of weed, as reported by Forbes Forbes much more lucrative compared the price of an ounce of "high-quality" marijuana according to Forbes ccording to a map from Forbes. > more $346 for an ounce of high quality marijuana פורבס’ $346 for an ounce of high quality marijuana