I don't think they would want to take on future development of the software themselves. It has been suggested by one of my customers that I try and find another

I don't think they would want to take on future development of the software themselves. It has been suggested by one of my customers that I try and find another organization to acquire the software. Finding more customers is the crossroads I'm at. I could take a good chunk of revenue and put it towards marketing and creating brand awareness, but if I go with the wrong vendor it could end up just being a timesuck.