ken_b - 8:05 pm on Dec 10, 2010 (gmt 0)
My site is over 6,000 static pages, almost all are evergreen and seldom need updating.
Even when I add a page in between two old pages all it takes is building the new page from a template and then changing one link each on the old pages.
You can always serve ads in an iFrame.
Any whole section or whole site changes can often be done with a global search and replace. Good planning in the beginning makes that seldom needed.