Bought a brand new lathe last year. The budget would have stretched to DROs. I chose not to get them.
The decision against the longitudinal axis was easy enough; I seldom machine anything length-critical in that dimension, and the magnetic base with the dial indicator do fine for that. Also, I figured the scale and its cable would become a chip collector that would be hard to clean.
I agonized over the cross slide DRO for a while, but between the chuck on one side and the tailstock on the other, plus blocking access to the gib screws, I eventually decided against it.
Downside: as I get older, it's getting harder to read the dial indicators and dial markings. Some time in the future I may decide that a couple of swarf-collecting attachments, one of which would probably get damaged regularly, would be a cheap price for large, easily-viewed LED digits.
If you go DRO, consider where you are going to put the display. I've seen a *lot* of lathe DRO displays mounted behind the headstock, or way over by the tailstock. You might think about repurposing as LCD TV swingarm and pulling it down behind the cross slide so you can see it and the workpiece at the same time. Maybe a piece of Lexan or Plexiglass to help protect it from hot swarf if needed. I never understood this business of having to turn your head 90 degrees from the action to see the display...