Hey Andrew,
I definitely think lab-grown meat will be embraced by many as an alternative to plant-based food due to the fact that not much plant-based food can truly replicate the feel and texture of real meat and most people, whether they are trying to mix things up or want to move away from a meat-based diet, would want something that reminds them of meat.
On the issue of cost, it could become cheaper if these companies are able to grow to scale.