There are MANY articles stating this. Year per year, Blu ray has a much faster adoption rate than DVD.
Which you'd expect, since those figures aren't normalized for population or economic situation or adoption price.
Blu-ray is one of the cheaper and easier technologies to be released, and has the benefit of being the quintessential
necessity for making full use of HDTVs. The other technologies it's often compared to had nothing to piggyback on. What the slides
don't show about Blu-ray is the fact that it's much more likely to be a sole device in those households--almost no one is buying BD players to replace all the DVD players in the house and instead choosing just the primary viewing location. That has shown little sign of changing. Even the cheap players are predominantly being bought as first units within a household. This is reinforced by the presence of only one large HDTV in the typical household that would benefit from Blu-ray (and far fewer with the audio equipment to handle it).
I don't know about anyone else, but the last time i stepped into Best Buy, their Blu ray section has grown to almost half the size of the DVD one. And it's getting bigger every year. I estimate a 50/50 split by the holiday season.
That has much more to do with them being more profitable. Retail space is at a premium, and Amazon dominates the distribution channels. Retail stores rely on new releases and impulse buys, and in terms of dollars per square foot, serving fewer customers at higher prices works out in their favor since they can't compete with Amazon on selection.
Yep he has a PS3 at home and a Mac for on the road....but what happens if he wants to watch the same film. Should he buy two copies?
If he voluntarily chose to put himself into the situation where he could only use it on one device, yes. Otherwise, he could have gone for a bundled DVD or digital copy, or he can bring other entertainment options with him.
Admittedly my analogy is overly dramatic, how about this you can have an engine without a car, or a car without an engine? That more appropriate?
Not at all. Most people who have Blu-ray at all (about 1/3 of American households) have one BD player and one TV that can benefit from it. Everywhere else in their life, whether it's a bedroom, den, computer, or portable device, they can't view that film. Further, for these casual viewing situations, Blu-ray offers no benefit and people have shown with their purchasing decisions that they're not willing to replace all the gear for the sake of the Blu-ray.
Studios know this isn't going to change, and that's why combo packs have become standard on new releases. Small screens and devices with limited storage mean that a reduced-quality digital copy is necessary and sufficient for casual entertainment.