It seems like the focus for a lot of internet marketers is finding that top trafficked keyword. However, this can be a mistake by not focusing on the true marketing involved. In some cases, the top traffic keyword is not one that will bring conversions.
Putting focus purely on the traffic numbers for keyword research is the reason many internet marketers are not able to pull the profit numbers many others do. Making sure you focus on the consumer and their intent more than the pure traffic size is key.
This can be done more quickly using PPC, but at a price. And in SEO, solid keyword research must be done to target proper keywords – a mistake here will cost a lot of time and money.
Evan LaPointe goes into a bit more detail about all of these factors at Search Engine Land. At any rate, it’s good to remember that the focus should be on the human experience, not just the analytics numbers.