My question regards the location of the readout box, not the scales...
So what are the "sometimes" you had in mind?
THAT should be easily repositionable within some reasonable range - eg: not "just anywhere" but so that you can shift it mebbe 6 to 12 inches left-right (10EE have small work-envelopes) and even up-down, plus definitely be able to angle the face of it when glare makes it hard to read.
"Sometimes" one is doing faceplate work, sometimes a large feature has to be addressed at TS end, and it is nice to be able to have the DRO in line of sight with minimal distraction when looking at display, tooltip, display, tooltip, etc.
Gilding a Lily, perhaps, but once all those electronics are "there", it isn't hard as electron-pushing goes to add a "repeater" readout for each axis right about where the mechanical dials have always been.
Pondering over these options meself - not for my 10EE's - they don't gain much from a DRO - but for my HBX-360-BC, the older all-manual that preceded these ones:
http://www.cazeneuve.fr/webuploads/display/75/01 OPTICA 360.jpg
Note dual displays, pylon mount above, plus another at the carriage controls, each multi-mode / combined mode as THESE ones are general-purpose display panels, not alphameric-only.
The HBX-360-BC is an inherently METRIC machine that can cut gobs of "Whitworth" threads too, so a DRO would serve me well as translator.