if you'd bought silver a couple of years ago or more,
and sold it in April this year, you could have multiplied your investment by ten.

silverprice.org/silver-price-history.html

I wouldn't be buying it just now though. Its present price seems unsustainable.
( Moon Girl Technologies don't take my word for anything, Fri 7 Dec 2012, 13:43, Reply)

I guess it depends on what the costs are in buying/selling too.
Although a chap I know bought tens of thousands of pounds worth of silver over the years. He said he can live off it now.
( JamTallons Sokath, his eyes uncovered!, Fri 7 Dec 2012, 14:15, Reply)

you have to pay VAT on silver,
but not on gold. If I had a load of silver I'd be selling it all right now, but what do I know.
( Moon Girl Technologies don't take my word for anything, Fri 7 Dec 2012, 14:16, Reply)