As the Hunt Brothers found out, it's pretty hard to "corner" a commodity.
The expectations of a higher price leads to increased production- which in turn drops the price. The use of alternative materials alsi increases.
Of greater import for today, though, is the experience of Nevada with mining- an experience that has repeated itself wherever dirt is dug up.
Simply put, the media is frequently misled into reporting looming crisis; these stories in turn spur panic buying- creating a shortage, or price surge- where there would not otherwise be a problem.
Keep in mind that we are electricians...not speculators or fortune-tellers. Don't let yourself be stampeded into running off the cliff with all the other lemmings!