jpch - 10:54 am on Sep 15, 2012 (gmt 0)
increase .01 percent return on existing traffic
If that has been your traffic increase due to optimizing, then yes, I'd agree with you that maybe your time is spent better on a new site. It could also be that you make really good sites the first go around so there's less for you to optimize. For some of us that hasn't always been the case...LOL.