I hope your'e sitting down. .the burton mystery cost in Denmark 12000 DKK thats just over 2000 US dollars :-P..
The X is around 850 US dollars over here. .
Yah, although there are often discounts. Personally I've always been a bit confused about the Mystery/Method - all the high tech (which to me means light weight and stiff) seems to be a much better fit with a cambered board rather than a hybrid shape.
Snowhound wanted to know the stiffest burton flying V board - I think it would be the Mystery, which would still not be as stiff as the custom X