While the difference is small, nickel plated cases probably have a shorter life than plain brass. There are alot of contributing variables not related to the plating that shorten case life.
Back in the day when carbide resizing hand gun dies were a rarity, nickel plated cases could damage a steel die more easily than brass if the proper precautions were not taken. But, those issues still exist when resizing nickel plated rifle cases.
While I do not avoid using nickel plated cases, I tend to not buy them except for the occasional specific purposes.
The nickel plating is more resistant to corrosion. I understand it was first used for law enforcement officers who carried their spare ammunition in leather belt loops. The brass would react with the chemicals used at the time to tan the leather.