There is many new 8 inches tablets coming with Windows 8.1

Dell venue pro 8
Lenovo Miix2
Toshiba Encore
...

For less than 300$

I really want to try this new babies with the vArranger software !

The only problem, is that there is only one usb port who is used for charging/powering the tablet, and to plug the usb/midi keyboard, and you can't do the 2 things together

Waiting for a solution for then then will buy one and try it !