User blog comment:D. Cello/Assassinews 03/05 -- ACWiki's Fan Section and AC3 first trailer/@comment-4653027-20120312160737/@comment-4636255-20120313042542

To the anon who asked, why not Kinect? Seriously you try and think about it. There are no buttons in Kinect, how many movement sequences for your body can they create? It will be really complicated. Imagine having at least 20 different movements for throwing knives, bow, guns, rifle, tomahawk, sword, hidden blade, climbing, etc? Since PS Move has buttons, they can assign one button to each weapon.