The problem is probably in risk vs reward. You have to succeed in at least one lawsuit against John Deere (other countries may have different laws, and thus mo

The problem is probably in risk vs reward. You have to succeed in at least one lawsuit against John Deere (other countries may have different laws, and thus more lawsuits), and then you have to convince people to buy your third party stuff rather than OEM stuff. Then on top of that, you have to pray that John Deere doesn't successfully lobby for a law banning your software, or find a way to prevent your software working (i.e. a continual arms race). The profit is probably there, but I think the cost to get to the profit and the likelihood of failing are both too high to be appealing to investors. Those same investors could just invest in John Deere itself and probably get a better risk-weighted return.