This should be, without a doubt your first consideration when building links. It isn’t the only consideration… not by a long shot, but it should be the first.
Of course, most SEO professionals do not ever consider this because they are stuck in the outdated mindset of PageRank manipulation where quantity was more important than quality.
However, Google has said that they are starting to move more toward weighting link strength based on the number of actual clicks that a link generates. So thinking about the actual traffic a link can generate is in line with the future of Google.
Beyond that, your goal is to drive traffic. Therefore, getting a link from a page that already gets a lot of traffic and is highly relevant to the topic of your page could give your site an excellent traffic boost. If you find a page that fits this description, first try to get a free link… but if you can’t, then consider buying a link. If you do buy the link, you want to make sure that it either looks like it is a natural link or that they put a “no-follow” tag on it, because you want to avoid a Google penalty.
We will get deeper into how to do this later, but it’s something you should know up front.