I buy my coins one or two at a time from ebay. What is the best denomination to buy? Seems to me buying quarters is the best. When a quarter averages $3.00 each, I can buy them for less than what they're worth. I can get dimes cheap, but i always end up paying more than their silver value. Halves i can buy cheap, but not for what they'e melt value is. I have never bought a silver dollar for less than melt price. Seems to me that quarters are the best investment. Any opinions?