Not enough steak!
In my neck of the woods, we have these soy-boy type restaurants popping up all the time, getting great reviews, then failing epically (assuming this is real.) No one wants to pay $400 for two, and then walk away needing a protein shake.
It's not all about protein.
Don't forget about the value of the life force of the food you're eating.

Vegetables have feelings too. Remember that plants respond in their growth better to classical or jazz than to hip-hop.
Animals are obviously better though.
Mmmm, marbling.