Who can account for the eccentricities of the artistic temperament?
On his website that I linked above he says that he prefers to work in 1:24, which as you say is better suited to the US.
I usually work in ½ in = 1 foot scale, which is half the size of dollhouse scale. The first few pieces I did were in dollhouse scale, but I decided to change to the smaller scale so I could build more intricate environments in the same-sized space. I also find the smaller scale more “intimate.” If I’m building a view out a window, that would be built at a smaller scale than the room interior to force the perspective.
http://www.alanwolfson.net/qanda.htm
I don’t know where the 1:26 scale mentioned in the ad came from - if he changed his standard approach for this project, or if it’s a typo.