I don't think in terms of dollar averaging. Indeed, I don't think in terms of dollars at all. I think in terms of how many ounces of precious metals I own; and the object of the exercise to own as much as possible before the dollar completely collapses.
“We have a big option expiry coming up on Tuesday, and this is just business as usual,” says Sprott Asset Management’s John Embry of gold’s price action.
Mr. Embry subscribes to the theory that powerful forces manipulate the price of gold — which in this case is working to your advantage. “I think it’s spectacularly bullish that sentiment is so incredibly weak in the metals. I can’t believe that people are basically being influenced to this degree by price action and they are just ignoring the fundamentals.
“That is exactly what the people who are creating the price action want... Gold and silver prices are going to multiples of the current prices in the not-too-distant future. And if you don’t own this stuff, you’re going to get killed.”
http://www.gold-speculator.com/5min-forecast/71055-ignore-noise-opportunity-here.html
BTW, your calculation is way off. $100 face value of junk (90%) silver coins is the equivalent of 71.5 troy ounces of pure silver. With silver spot at $31.23, APMEX's price is $2,278.70. Divide that by 71.5 to get $31.86/ozt--a premium of .63/ozt.

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