Outside of total depletion of land values with uranium mining, I've never met a rich miner, no matter the substance he or she was mining. So the question I would ask here is, "hugely profitable" to whom? As I mentioned previously, uranium prices are subject to fluctuation and have no historic bearing to help determine the actual price of yellowcake on the market. To state that yellowcake is a "potent source of local and state tax revenue" is making a promise based upon a theory.
I encourage you to head over and read the full post, particularly if you're following the mining issue.