More Clicks? Ads or SEO?

This is the 2nd part of a series of blogs with questions about marketing a small niche market website.

        Try not to pay too much for your individual clicks.    It is recommended by Bazaars R Us to use

specific, multi-word (high quality and cheap) keywords.  Go for traffic with your ad money, and don't

worry so much about your conversion rate (which will usually be good, since you would be 

using very specific keywords anyway). 

         Your organic traffic is statistically more effective, both in quantity and quality.

         Both methods can be costly, especially if you trust too much in the many "short-cuts"

available, out there in the inter-web...

        So, how and when are ad campaigns important in relation to your SEO?