When you hear about companies complete acceptance and willingness to turn over all of your private information in multiple other aspects, then one of those same said companies participating in turning your information is releasing a highly intelligent, HD camera into your living room -- That always "listens".
While I'm not so paranoid that I wouldn't buy something like Kinect or PS Eye --- I don't believe for a second that they couldn't / wouldn't / or have no rational to be able to do it.
I suggest you watch this video before trying to make fun of everyone who has legitimate concerns over this. Plenty of evidence of this type of stuff all around you, if you unplug your eyes/ears.
http://www.democracynow.org/blog/2013/6/10/inside_the_nsas_domestic_surveillance_apparatus_whistleblower_william_binney_speaks_out
This type of stuff is/has been going on and people just want to remain oblivious to it. Perhaps my favorite part of the video is :
AMY GOODMAN: Speaking of the FBI, in 2008, actor Shia LaBeouf appeared on The Tonight Show with Jay Leno. During the interview, he talked about an FBI agent showing him a recorded conversation from two years prior to meeting him.
SHIA LABEOUF: I remember we had an FBI consultant on the picture telling me that they can use your ADT security box microphone to get your stuff that’s going on in your house, or OnStar, they could shut your car down. And he told me that one in five phone calls that you make are recorded and logged. And I laughed at him. And then he played back a phone conversation I had had two years prior—
JAY LENO: Come on.
SHIA LABEOUF: —to joining the picture. The FBI consultant. And it was like one of those—it was one of those phone calls—it was like, you know, "What are you wearing?" type of things.
JAY LENO: Really?
SHIA LABEOUF: Yeah, so it was—it was mad weird, but—
JAY LENO: Can we—no, wait. So you mean they had a record of you from—
SHIA LABEOUF: Two years prior to me joining the picture.
JAY LENO: —even being associated with the movie?
SHIA LABEOUF: With the movie.
JAY LENO: Well, that seems creepy.
SHIA LABEOUF: It’s extremely creepy.