I have been coin collecting for a long time, i am big into coin roll hunting. but now I am thinking of just buying some silver rounds, for I guess investment, (like ten rounds) I am looking on line and there can be big price discrepancies between the silver rounds made by different private mints. If silver is silver and it is bought for an investment why are there companies out there charging 2 dollars over spot for their silver rounds when another company changes only a dollar over spot for the same silver. There seems to be a company called ohio precious metals that has the lowest over spot price i have seen. Could there be a quality issue with their rounds and thus the lower price. Are the lower price coins not made by trusted mints? I dont get it.