Has anyone ever done this? I was thinking of this the other day but I may be dreaming. I mean of course I would... or should I say can't get high grades, so I was thinking low grades. But having one of each of the key dates like Lincoln, Merc, Peace and the more easier to obtain series might be manageable. Some of the other series will always remain out of reach like Trade Dollars and old Large cents. But I'm seriously thinking of trying to at least get a small collection going of key date coins from different series. If you would buy, which way would you go? get low grades of each series or high grades of only a few?