Codom traits are affecting the market. Normal females cost more because one male can breed multiple females. A friend of mine bred on male pastel to 9 females and all 9 had nice clutches! Normal females have gone up in price because of traits like spiders and pastels and normal males have stayed the same.
Pastel and Spider females are more because sellers know that people want to make super pastels, bumble bees, killer bees, etc. and the way to do this is to cross visual morph pairs. So their demand is high right now.
I would love to have a male spider and about 8 female pastels or even better a male pastel and 8 female spiders!
I hope this answers your question!