Indeed - the Cintiq has never really been affordable in the vast majority of cases. We have a whole team of designers here at the office and lots of Wacom tablets - and not a single Cintiq.
The digitizer-on-a-screen idea isn't new, but its affordability is definitely unprecedented. The Surface Pro (for all its faults) is a high-res IPS display with a Wacom digitizer and some pretty respectable specs for <$1K.