OTOH, I can see that if I'm looking at the tool tip entering the work and the DRO is just in the same direction of sight it would be useful.
I dont know about you and tom... I prefer to look to my left.
Honestly, I don't know where to put the screen, so I'm going to have to experiment as time goes by.
I'm planning to put my display right
ABOVE the headstock. I plan to make a double sided wooden hat out of clean maple to match my tool holder rack. I love the marriage of wood and metal.
One side of the hat fits over the headstock like any hat would, and can be clamped down if necessary. The other side of the hat acts like a flat shallow sided tray to hold tools and other things I need handy to the lathe. Could be tool holders like yours, or whatever. Because there are shallow sides on the top of the hat, the tools will never fall off. I might drill a few holes to add Allen wrenches, screw drivers, or whatever. The left side of the top will be taller and have an anchor to hold my DRO Display. I want the display on the left so I can glance from the part to the display without turning my head. A lot of intense things happen at the chuck jaws. I don't want to be looking elsewhere.
I also don't want the display in the line of fire from hot swarf or whatever. So it will be attached at the left side of the hat and sit above the left side.
Edit - I forgot to add the little detail that led me to this solution. I do not want to drill and tap holes in my headstock to hold a display mount. Too much risk of punching through into the oil box. A hat needs no screws to hold it in place and then the mount can be screwed to the wooden hat.