UPDATED 10:52 AM: In response to questions regarding the price listing, a Microsoft rep told me via email, "We haven't announced a price for Kinect for Xbox 360." Retailer listings do not an official price announcement make.
Microsoft still has yet to announce the official price for the newly minted Kinect, but that hasn’t stopped the official Microsoft Store from listing the motion sensing tech for $149.99.
Online retailers such as Amazon and GameStop have also listed Kinect for this same price, seemingly debunking expectations that Microsoft would go for a more aggressive price point, perhaps around the $100 mark.
I guess Microsoft could be planning some elaborate ruse in which they approve the $150 listing just for the sake of the first batch of pre-orders, and then, in a few weeks, they will reveal the “real” price, delighting those people who already thought they were paying $150 for it, and making Kinect a more comfortable purchase for everyone else at around $100. But that doesn't sound all that likely.
On the other hand, that $150, perhaps unbeknownst to retailers, could include a launch title, in which case that price would be much easier to swallow for a lot of prospective buyers. Plus, it would just make sense to include something that people can play right out of the box without tossing down another $60 on top of whatever the Kinect will "officially" cost.
An official price announcement can’t be far off now, so if you’re a big fan of price point debates, definitely stay tuned.