It's a double edged sword. If the dollar gets to high it hurts our exports. China tends to buy more commodities when the dollar is low.
What would you rather have, a handful of cash that isn't worth as much or half a handful of cash that's worth more?
I'll take a grain bin full of soybeans when the dollar is low and China is in a buying mood.
My Edward Jones rep told me he went to see the biggest landowner in the county one time about investing. The response was "if I can't drive across it or it don't have hair on it I ain't interested." I should've listened to those words twenty years ago. In other words, real, tangible things are where invest, the rest (cash, stock, etc.) are paper. I assume one could make the case for metals as well.