Have you considered funding a team to build one of your own ideas or perhaps finding a team that has ideas of their own but need funding to pursue them? If you'd like to discuss in more detail, you can find my email in my profile.
Why would he do that? He is paying for the time spend to market and building a product.
I was just throwing it out there, just in case he doesn't find some more developed that he'd like to purchase.
Thanks but I also have my own side projects / products, the goal with this would be to invest in something to get a decent return without all of the risk associated with creating something new!