The price of seven club sets will equal 7/8ths of the trade value. The fixed price divided by ten determines all additional individual or complementary iron and wedge pricing (10). Individual 5 and 6 irons will not be accepted for trade by Callaway Golf. Prices include trade-in value of current clubs. Callaway Golf estimates that the retail cost of producing a quality set of golf clubs is about $9000. Since trade-in values are based on sale price rather than actual cost, we can estimate that the trade-in value of a quality set of clubs is about $7000. This means that trading in seven good clubs with a total value of $7000 or more will entitle you to a discount off the full retail price of your set.