Unfortunately, the image of the LifeCam HD-3000 is significantly worse, it needs much more light for comparable quality. During the day there are no worries, by cons in the evening or in a meeting room that has no windows, the image has a lot of artifacts.
On the video side, the image that I often jerk and makes videos in 1280x720 unpleasant to watch. I also have problems with Skype: the camera freezes for a few seconds, fairly frequent basis. We must reduce the resolution for the video to be more fluid.
At 20, this camera may be correct, but I think it is better to wait a promotion of a better webcam, even pay a few euros more.