eventually minimum cost to manufacture will come into play. there will be no additional cost to manufacture a BRD over DVD and the cost to manufacture both will outweigh the benefit to having both on market.
As I've been saying for like three posts now, DVD's didn't take off until 1999, and not until really fall of 1999 on that.
Link What happened fall of 1999?
Oh, a little movie called Matrix hit and sold though almost 1M copies in it's first week. And for those who are insisting that DVD prices were the same in 1999 and 2000, go look at other posts on those pages I linked to. MSRP of $24.99 and $27.99 during most of 1999... vs. most titles today with MSRPs of $39.99 and $34.99 (remember, the price at Best Buy is still around $10 lower than MSRP). Pricing still has a long ways to go (more than the $5 I'm asking for based on MSRP) for it to be anywhere near what DVD was when it took off big.
And for those hoping BRD takes off before pricing hits those levels, answer this. When in the history of consumerism has there ever been a mass mainstream adoption of a considerably more expensive technology compared to the existing tech? CDs didn't take off big until the average disc was under $12 back in the early 90's, despite being around for over 5 years. DVDs didn't take off big until you started seeing discs regularly priced under $20. Even video game consoles and games don't take off to mass market levels until the system generally hits under $199. It is all about pricing to J6P. If something costs more, what they currently have is good enough.