I am not sure if that makes my perspective unique or not, but as a general rule of thumb I would tell anyone looking to get into the "dirt work" (growing) of the AG business to change their minds. In fact, I would tell them to run for the hills. Most farmers in America (aside from the huge co-ops) operate at a loss each year, and only survive due to subsidies, at least here in America.
That being said, if you are interested I can say for sure there is a LOT of money to be made developing the systems I currently work on and/or contracting yourself out to companies like mine for existing work we can not handle in house.