While 4Ds may not be in high demand, the B&M Wing Rider sure is. S&S Power probably has higher cost, more maintenence issues and more general stress to track and trains. Plus, isnt B&M working on getting a 4D up and running sometime soon in small baby steps instead of doing it all at once and have imminent failure like Arrow did? I can seem B&M using a form of this for their 4D.
Also, if you read his comments, he claims there is 1,000,000,000 degrees of possible rotation for this thing with a grand total of being able to go 900 on one side and 900 on the other. What?
Switching between the hideouts'...