As a buyer, I wouldn't really compare Natal to my Wii or the PS3 Move. Even though they're all motion controls, I have different expectations from each one. There are definitely similarities, but I expect the style of games to be somewhat different in terms of content and competitiveness. For example, Move might be a compelling buy for me if I like the look of the new Socom and how they've integrated it. I have absolutely no interest in playing a shooter with Natal as the complete control mechanism. I'd be more interested in things like the Yoga/Tai Chi game, or a boxing game - games that are benefited by full body tracking, with little use for pointer mechanics).