About a third of the ancient city has yet to be excavated, however; the consensus among scholars is that this remainder should be left for future archeologists, and their presumably more sophisticated technologies.
Scholarly consensus is that part of the city should stay buried. There are all sorts of concerns about visitors damaging Pompeii. That article is full of them. During World War Two, a group of allied soldiers thought Pompeii was a nazi encampment and shot at it. Nobody wants Pompeii to fall into further ruin.