I think you should put your question into relative perspective. Is the question related to a price guide? Actual Sales? Individual Sale? What
DDO#1 is both very common and well known. Anyone can buy this variety at any time, which keeps prices down. DDO#2 is a lesser known variety and is not as widely available. The supply for #1 easily meets demand for the coin while demand for #2 is or may be higher than the supply. The strength of the doubling has no effect on the price of a coin, the market does.