Right now, what you see are start-ups in the U.S. that are building those robotic applications for agriculture. They're not publicly traded companies yet, and it will be expensive for a while so that very few people will actually be able to afford one of those robots.
It's a bit like drones today. You will probably see a lot of companies that will start buying them and licensing them at some point as they do with drones right now, offering a service, because not everybody can actually afford a drone. It's still going to take a while, but now today's technology is so rapid it can advance.... Who knows? It could be there in maybe 10 to 20 years.