I only got into SEO in the last few years and from researching and talking with some buddies, it seems that SEO was significantly easier before the panda and penguin updates. In fact it was so easy that one of my buddies who knows almost nothing about SEO had created and sold a drug rehab site for more than $40M.
So I'm genuinely curious, in a time when SEO was pretty much LINKS, LINKS, LINKS(and a sprinkle of over optimized on page), and automated tools to do it all for you, and in a time when you could literally rank for "car insurance" in a month with an EMD and 10 thousands GSA links, did you guys make crazy bucks?