Is still an effort and some might willing to pay. Like I said before, willing buyer and willing seller.
How about those who buy corals with intent to frag and sell with profit? Isn't this the same logic behind? Buy a rock of yumas for less than $30, frag out each yumas and sell at least $20 each. Or any red or green people eater zoa, buy a big piece and frag out to sell, etc.
Was also amused to hear funny story like a kind seller sold an equipment at cheap price to a buyer. Buyer bought without testing. Few days later, buyer feedback to seller, said got problem with the equipment. Seller offered to collect and pay back, but buyer counter proposed to send for repair and want seller to top up if necessary. So if the seller sold the equipment for $10, he may end up paying $100 or more for the repair cost.
Anyway, just reef on and enjoy the hobby.