Ah you guys with the D850... Now you're not only spoiled with DR but also with even more cool features ;-)
Focus stacking in the field is always worth it. If in the end I don't need the additional photos I can just delete them but I can be sure to have nailed the focus at least in one frame. Hyperfocal Distance doesn't seem to work for me ;-)
@jarvie : even if you don't want to integrate PS into the workflow yet, I think there are tools to do the stacking for you so you can stay in Lr with your processing. But I'm sure it's just a question of time until they add it to LR.
I prefer manual stacking though
Hehe. DR is still the most important thing though. As awesome as the D850 is, I haven't edited enough of my photos from the D850 yet to make the judgment call of whether it's worth the extra $2000 over the D750, weighing the extra features against a better lens or more travel.
And good point about focus stacking tools - there's probably one that will work in concert with Lightroom. My experience with PS though is that it never gets the focus stacking quite right - manual adjustment helps.