I think you're getting at one of the major dilemmas of running a one-man lifestyle business, the need for self-self discipline and motivation. Once things are automated and profitable, it's hard to find the motivation to keep innovating and eventually even just updating the product. In my case, I started a niche website in 2008 that soon became profitable. I thereafter started working on other projects that we more successful and I abandoned new developments on my original site, which is still profitable and producing about the same revenue as 2008. It's just not a large enough revenue source to continue working on it over my other projects.