CEO of McDonalds said exactly that after they raised minimum pay in some places to 15 dollars. "I was at the National Restaurant Show yesterday and if you look at the robotic devices that are coming into the restaurant industry -- it’s cheaper to buy a $35,000 robotic arm than it is to hire an employee who’s inefficient making $15 an hour bagging French fries" http://www.foxbusiness.com/features/2016/05/24/fmr-mcdonalds-usa-ceo-35k-robots-cheaper-than-hiring-at-15-per-hour.html