Vernacular encompasses a very wide range of technical execution - most of the Mathew Brady images I own would absolutely be considered vernacular. As Jeremy Moore explained vernacular to me, it is "images of indigenous people created for indigenous consupmtion". It doesn't have to be limited to low-fi images of anonymous people by anonymous photographers. 99% of studio portraiture would qualify as vernacular, as would 99% of amateur photography. But there's that 1% of each that escapes that category (I was going to say 'rise above' but that would be assuming vernacular photography is somehow 'lesser' than non-vernacular photography. The marketplace values it less, to be sure, but I have found in my collecting a number of vernacular images which are exceptionally beautiful and worthy of framing and hanging on my wall; images I would hang before 'fine art' images that would cost exponentially more).