Richard loves them for his own amusement. And there are many different types and variants out there. Each clever and deceptive for different reasons. Having said that, the Wellington board remains commercially viable. In fact, it has been my experience, that the more one knows about electronics, the more deceptive it becomes. I did it at a tech show years ago and was met an hour before the second day of the event by a dozen guys at the booth. They were waiting for me to arrive. I recognized one guy from the audience the day before. Turns out he was head of the ny electricians union and brought several others with him because the board disturbed him so. Spent several minutes with them and they thought it was one of the most fascinating thing they had seen.
There are things you can do with the board - not in the instructions for the standard routine - that allow one to eliminate super high tech methods (even imagined, impossible one's).