i have been wondering about this. the cafeteria at my office sells impossible burgers for $3 and all-too-possible meat burgers for $3.50 (all our food is at cost). and no, those numbers aren't backwards. so clearly the cafeteria is able to buy bulk hempy impossible soystuff cheaper than beef.
(OR they are eating a loss to encourage vegetarianism, which is the kind of directive our CEO might issue)
(OR the beef they use is free range, organic, privileged, multicultural diverse beef from all backgrounds and walks of life, which drives the cost up, so the impossible burger only seems cheap by comparison)
but the fact remains that it is a) cheaper, b) healthier and c) assuages my conscience to buy the impossible burger, so that is what i do. it tastes almost like beef, but still tastes good, so i don't mind the difference.