Big fish, growing pond?
Maybe it's about being a big consulting fish in a (relatively) small W8 pond with the potential for slow growth. Even if business doesn't adopt W8 on the desktop, there's room for development on the tablet / mobile device side. Regardless of whether W9 continues with the Metro GUI, reverts to the traditional / Aero-style interface, or something completely different, there will be some W8 consulting skills that will carry over to its replacement.