Why do people love the Kodak T-Max P3200? Because of its versatility. If you're shooting outside on a bright sunny day, you can expose it at ISO 400. And if you're going to shoot at night, increase the ISO to 3200. In both cases, the results will be excellent.
It says on the box that this is 3200 ISO film, but it's actually rated at 800 ISO (with most black and white developers) and 1000 ISO if you're using a T-MAX developer.
Kodak T-Max P3200, Kodak, T-Max