How Tough Is It To Complete A Quality Series Of Coins?

Good point about having an album with all coins looking about the same grade. I assume the same about pieces of jewelry that have similar degrees of variance in color and clarity. They can't all be the "same" but it says a lot about the collector if all the coins look alike at higher grades. Wear, condition, and tarnish I would assume is the same with gems having inclusions. They may be cheaper but it depends largely on eye appeal, as well, since certain inclusions are worth more than others. If you can find coins that match your set as a whole yo can save yourself a lot of money instead of resorting to buying an agreed-upon grade that will cost an arm and a leg. Think about how out of place an expensive VF will look next to 40-50 coins in MS.