As I understand it, SEO-ers get more of a return from mass-market searches for mass-market items like grills and domestic doodads.
The audience for economic deconstruction and heavy rail is likely quite a bit smaller than the audience for fat-free cooking items.
Plus, by a glimpse at the sitemeter, we get a lot of traffic from the google image search, maybe even more as through the normal google search. We post a lot of pictures, and google is as kind to index us even when we do it stealing other people's bandwith.
