I don't think you should categorize all digital dashes that way.
I've got a racepack digital dash (replaces the stock cluster). I can use it to monitor every sensor on the car without requiring a dash and A-piller full of gauges. It's nice to look down and see RPM, oil pressure, fuel pressure, boost, AFR, and anything else from one gauge. I can check to see what the maxes and mins were for each input. It has a shift light, and can even datalog, though I haven't learned how to do that yet. It cleans up the rest of the dash nicely.
Chris