So how long until Blu-ray completely phases out DVDs?

[LethalStriker]

Excuse if this isn't the right forum but I can't think of a better place to post this. First came VHS which was eventually replaced by DVD and now Blu Ray will ultimately be the next generation after that. For the most part DVD sales are still way higher then Blu Rays but thats mostly because the price of BD's is still higher then your average joe is willing to pay for a movie. But with Blu Ray players slowly becoming more of a platform then just a place to play movies it will eventually take over the whole industry. So what is your guess in a year or two, 5 years or 10 years before it takes over the industry?