Agents around here can purchase a package that includes professional photography (glamour shots of property, extra for the glowing, night-time shots with every light in the place ablaze) and plans. The drawings are not architectural or engineering quality, just floorplans but more than we draw. They are useful to me as an appraiser when included in the MLS photos of potential comps.
I went to the site to look up the prices once. For the drawings they have someone go to the property with an iPad and a mini disto-like laser, whilst back at HQ a team of not-quite AutoCAD drafters receive the info and crank them out, quick. I'll see if I can find it.