Goodbye old chap, Aero glass

Few days ago Microsoft announces that the Aero theme will be changed in Windows 8 and the "glass" effect will be removed with shadows and other things.

only a incomplete preview, says MS

I like the Aero Glass effect and the Aero translucency in Windows 7 (elegant imho), with shadows and other effects.
These effects slow down the system? Maybe, if you have a old Pc (or if you don't want to waste resources for that), but you can choose to deactivate them.

Customization. You can choose.
Ok, the GUI design must evolve, but what is the price?

Users want customize their visual experience, so why there isn't this dialog on Windows 8?

I hope it's disappeared because it's a Beta, but...

The right path for me? Everything customizable, so users can fine tune their Windows.
Microsoft removes the customization? Customization utilities/tools will be created.
So, another 3rd-party software to install and another feature removed out-of-the-box.
GG.