There are probably a hundred reasons why any shoe is or is not in our line. Market research and how well a product is received by golfers weighs heavily on decisions to add or remove anything in our line. The amount of discussion that goes into these decisions is staggering.
I once had a talk with one of our tour reps about this very thing. Standing on the range at Bay Hill a colleague of mine stated that almost everyone on the range (in FJ) was wearing some form of a white base with black saddle shoe. Our Tour Rep said simply, "next time you come here, everyone will be in white with brown."
What he meant by this is, golf footwear, specifically traditional colorways are very cyclical. What is well received right now, likely will not be the following year.
That is why we mix it up and change the line as often as we can.