Granite is much more resistant and sustainable as an exterior material, though. Especially to high-rise buildings.
And it has pretty much the same visual properties (available in various colors, good looking stone).
The fact that it would be cheaper only makes it smarter. Why spending more money for something that would get damaged and crumbly sooner?
The Grande Arche de la Défense used to be cladded in white marble.
https://fr.wikipedia.org/wiki/Arche_de_la_D%C3%A9fense
That's actually an office building.
When aging marble panels started to fall down, they simply replaced them by white granite a couple of years ago, and now it looks just the same. All white.
You have to get really close to the façade to notice any slight difference.
Marble panels lasted for only 30 years to that building that's supposed to be a landmark of the district. So it was a bit embarrassing that they would be so fragile.
However, marble remains a very nice interior material. When it's not overly exposed to outdoor elements, it is elegant and fairly smart.