I agree that the description is very important to entice users to click -- if a keyword searched on shows in your title and again in the description it is bolded creating impact.
One thing that gets me though is all these tools that promote "unique" title tags, meta descriptions and use it as a page grader -- you get an F if you don't have a unique meta description.
So I try to make it unique. It may be .005% of an overall page score but at least your paying attention to it.
