Pros and Cons of iShares' Silver ETF

"I’ve been a big fan of commodities ETFs since 2002, two years before the launch of the gold ETF (GLD) and four years before SLV was born. Despite this, I will probably never invest in either GLD or SLV, although I will use them as short-term trading vehicles to speculate. Why? I am a physical guy. When I buy gold and silver to undergird my own investment portfolio, I want physical bullion coins held in my own immediate physical possession. To me, everything else is inferior paper."