There's no shortage of demand from vegetarians and vegans considering all the meat-shaped tofu you can buy today at elevated prices. Manufactured meat is preferable to supplements and it's going to sell.
But rather than eat lab meat, maybe people would migrate to plant-based substitutes such as jackfruit, reported yesterday, 'I think there's meat in my burger and I'm vegan':
http://www.abc.net.au/news/rural/2018-01-02/jackfruit-findin...