A 32GB tablet has only 16GB for storage. Microsoft programs and OS are known to be bulky. This is just for the supposedly lite weight RT.
Imagine for the PRO tablet, there will be even less storage available.
As I said, PC is not tablet and mobile. Tablet and mobile are not PC. Unifying PC-tablet-mobile is a big mistake. Maybe that is the reason Mr. Windows 8 got fired.
Wait for Windows 9.