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If it wants to compete with YouTube the cost of investment will be astronomical. 2,500 new videos are uploaded to YouTube every minute, amounting to 183 hours of video content per minute. Not per day, not per hour... per minute. You then have to factor in the necessary hard drive space that is required to store all that media and the astronomical bandwidth that is required for it to be playable for the end users. Even if it was say, 1/10th or even 1/20th of those figures, most companies aren't going to have the necessary means to throw big daddy Google dollars at it. Which is why there's no serious competitors and we're stuck at the mercy of YouTube's policies. It's too much of a gamble, and YouTube is already too well established.