Nobody will 'attempt' to make it too expensive. And by 'it' I mean non-mainstream, non-muscle, items like organs and other animal tissue that are ecclectic.

It will become too expensive because lab-grown meat will dissociate the supply of regular meat from those other items, and it will cost more to raise an animal at lower quantities.

Nobody is saying there won't be small-batch farmers raising animals for these markets, but in agregate the supply is, imo, going to be severely reduced.

And tbh yes I think wayyyyy down the line (100s of years perhaps), if we can synthesize all the products of an animal, there will be valid discussion on banning animal slaughter.