A lot can change in a year.
The Entertainment Merchants Association just released their annual report , and it concludes that the PlayStation 3 is "the primary driver behind Blu-Ray sales, with 87% of PS3 owners watching Blu-Ray movies on their console." This may not come as a surprise to some of you, until you realize that in 2008, 60% of PS3 owners supposedly didn't even know their machine could play Blu-Ray movies. Now, the current prediction is that Sony's next-gen console will be "the main force behind Blu-Ray disc sales until 2009, when standalone Blu-Ray players are expected to outpace the sales volume of the PS3." In addition, the study found that the average age of the gamer was around 33, and 24% of the group are over the age of 50. …obviously, we're not about to agree 100% with such findings until we know exactly what this study's definition of "gamer" was, but we've certainly heard that 30-year-old average before. That may actually be close to the truth. As for Blu-Ray, Sony has often said the PS3 was instrumental in the rapid adoption of the new format over HD-DVD. It seems the "Trojan Horse maneuver" worked out quite nicely.
At some point, Blu-Ray will replace DVD as the standard movie format, but we're probably a ways from that. Even so, it's clear that both the PS3 and Blu-Ray have had positive impacts on one another.