Money wise, no it is not worth breeding sable right now as most people see sable as a junk gene. However beauty is in the eye of the beholder and if you like it, why not go for it. Either that or if you think you can find a combo that will appeal to more people, try it out. Yellow belly and enchi used to be junk genes also, then came along the combos with them, now they are staples in most collections.