One problem with the copper hoarding. Its bulky if you store it, thieves love it because they can dump it for quick cash. And there's a bunch of it in the ground out in Utah. Kennecott's open pit is still booming. And they've closed the mine at the huge deposit in Lisbon Valley (south of Old LaSal). It was big news when that one opened, but the copper market isn't strong enough, yet.
At one of our regional shows, a guy had a 1,000 oz troy block of silver. Yes, it was heavy. Too heavy to move around. With silver at $14 or so when he offered it for sale, he wanted $14 grand for the chunk.