The choice is certainly subjective. The negatives have been covered ad nauseam. As far as benefits... With an RTT...
1) I can almost always get a level sleeping platform. I can even camp on a rock garden. It's just a matter of stacking rocks, logs, etc. If none are available, then bring lightweight leveling blocks or firewood.
2) In rain, I can set-up the tent with all bedding inside, even sleeping clothes in about a minute (hard shell). Not possible with a ground tent because you'll have to go back and forth transferring sleeping bags, pads, etc. In RTT, you can even have your LED strip lighting all "hard-wired" in and ready.
3) Say you are in a ground and it starts to rain big time.... add high winds. Part of me can't help think, "Am I in a low spot. Will I get flooded?" No worries with an RTT. Ground tents can be sturdy in the wind but the ones that are, usually have more poles, more complex to set-up and might require guy lines which equals more time to set-up.
4) It's the next day, you wake up and it's all mud around you. Let's pack up this muddy ground tent. Uggh. RTT, it'll be wet but not muddy.
There's certainly more benefits... but these come to mind. If you camp in fair weather and developed campgrounds, benefits will be fewer.