A PPC/SEO combo can be deadly-profitable. I've done it in the past and at times the SEO traffic would make more than the PPC traffic. But if you're doing to do the SEO work be sure you choose a topic that is still going to be hot 2 years from now.
There is no reason to do the SEO work for a fad offer that at some point is going to expire, cuz when it ends, your site is dead in the water.
There is no reason to do the SEO work for a fad offer that at some point is going to expire, cuz when it ends, your site is dead in the water.