I've seen a marketing report from Marketing Sherpa that showed the stats in the same range of 1-3%. And this was for the sites that were focused on a particular

I've seen a marketing report from Marketing Sherpa that showed the stats in the same range of 1-3%. And this was for the sites that were focused on a particular product and the traffic was very targeted as well (most coming from AdWords etc). Most people just browse and never reach for their pocketbook.