[quickConclusion]

Can't speak for the OP, but when you own and run a profitable business that sustain financially your lifestyle and more, your focus is not automatically about growth anymore. As the OP says, it is often about reducing time spent. Hiring someone for SEO, managing her/him, making decisions, is a lot of extra work. I see the rationale for leaving that work to be done by the buyer, especially if you don't like doing it, and making the buyer feel good about their added value in the process.