Spink prices are for all metals, not just gold. Some of their prices for other coinage are also high, some low but it's not just dealers who use their bible, collectors also use it, but there is other price guides out there for all coinage of the U.K, you don't need to think Spink is the holy grail of pricing. Buy another 2 up to date price guides and take the average of the 3 and then see how much difference there is. Dealers also have to earn a living, but there are rarities in all denominations which you'll never pick up at bullion value no matter how much you think it's worth. If you bought a rare Sov at bullion price you'd be happy but would you be happy if the bullion price was 50% lower than when you bought the coin and someone else is expecting you to sell it at the bullion rate of the day? I very much doubt it. If you like sovs, stick to the early Victoria years, but don't expect them to come at bullion value, it just ain't gonna happen.