That's exactly what I do. I write a good site. Submit a google sitemap, url list to yahoo, and submit my home page to msn. Then I add content as long as I am still passionate about it. When I get bored I move on and create a new one. I don't do back links or go nuts with SEO. Mine is a 5 year plan and I figure that in that time I will have enough websites and pages out there that I "should" be able to retire (quit my day job). If not then I won't be far. I'm sure I could go medieval on one or 2 sites and constantly tweak them... but IMO all that accomplishes is sore nipples.