If you have access to MSWindows machines (XP, 7, or 8), you can build an MSWindows tablet for under $50 dollars. Purchase a cheap Android tablet for under fifty dollars and the add a free rdp (remote desktop) app from the app store and you have an instant windows desktop. Just connect to your mswindows box. If you do not have access to mswindows systems then get a cheap system for a few hundred dollars. Still cheaper than the tablet per se. You come out ahead.