Persona 4: Arena Features 30-40 Hours Of Story Mode

Fighting games? Story mode? What? With Mortal Kombat, Netherrealm created a reason for even the casual fighting game fan to pick up a copy. It was like... a kung-fu movie... that you played! It was amazing.

Persona 4: Arena will purportedly do the same, in JRPG fashion, with an estimated 30-40 hours of content in Story Mode. That's not the 70 hours I spent on Persona 3 Portable, but it's about as close as a fighting game will ever get (I think).

My question is: how much of that time will be spent on gameplay and how much of it is animated cutscenes? How much of that time is worth spending on Persona 4: Arena?