I think maybe I've connected the dots.

While a collector can buy classic gold coins at costs just above melt, there is no guaranteed market or fixed bid to sell the same. Depending on coin market conditions these pieces can become a somewhat illiquid "investment." As Ageka points out, there are many gold coins currently trading below their melt value. A holder of these gold coins is subject to the whims of the market and how much another collector or coin dealer is willing to bid for the coins, despite their bullion value.

On the other hand, a holder of modern bullion coins has a liquid investment that a registered bullion dealer will always buy for spot prices (minus a premium or commission).

Yes?