Yeah, it's on my "to purchase list" too, I would love to tinker with that robot, it would be such a cool project! The only things the bot still doesn't do is harvesting and cutting, at least it didn't the last time I checked (I've been following the project for a while), but all the other things it does automatically and you can have many different types of seed! IT's so awesome!
My Childlike imagination started to go crazy as soon as I saw FarmBot, I would love to have giant greenhouse with a giant farmbot that would do everything farm related for me! It reminds me of the times I played minecraft and did item farms where my character stood in place and items dropped on me ahahah