So, here we go:
Metro applications are different. Metro development is different. Desktop development is still present, of course. Desktop development is still powerful, of course. However, here are my (personal) top 10 reasons why Windows Metro development smokes Windows Desktop development:
Reason 1 – Hardware Acceleration
Metro applications benefit from hardware acceleration out-of-the-box. Build your application and you get the GPU, free of charge. Moreover, metro developers get a library of animations that are not only tuned and accelerated, but also provide consistent effects across the platform.