so a quick search indicates that the Nismo studs typically go for about $70 for a set of 10. So $140 to cover all four wheels.
The same number of ARP studs is $120. They're cad plated so they'll rust less, they have nice rounded ends so the threads won't get as dinged up switching wheels, they have an actual published tensile strength, and they're longer (well, to be fair, at least some of the "Nismo" studs claim to be 60mm, which is the same as the threaded portion of the ARPs).
So, again, why bother with the Nismo studs? Just because Nissan bought them from some manufacturer (or multiple different manufacturers) and put them in a Nismo branded box?