Most people who preorder it now are core gamers
I dont think core gamers care much about Kinect.
I think you're both right. As a Wii owner with a big family, I've gotten several games that I didn't care for just so my friends could play them (i.e. Just Dance, Wii Fit, DDR [which I actually ended up playing the most]). This is probably a similar situation.
"Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father except through me.' " ~John 14:6 (NKJV)