Pricing includes recouping enough to buy the next batch to sell. CTD isn’t the only one in the supply chain marking up.
Everybody’s definition of what is a reasonable price “mark-up” is entirely subjective. In the case of CTD, the consensus, I have seen from visiting ar15.com and other gun forums, is that they went too far. It will be interesting to see who the market will favor as things get closer to normal.