Until other systems start to use BlueRay or the HD movie industry war ends, BlueRay will not be an industry standard. If Sony wants to see their newest technological creation win, they will need to work hand in hand with other companies to ensure that the hardware and software mesh.
One of te reasons BetaMax failed as a consumer standard is because they, Sony, used proprietary formats and deivces for the products. People want selections and choices, they don't want to be told, buy this or you won't be able to enjoy high quality, crystal clear entertainment. Make sure Panasonic, LG, Hitachi, and anyone else who wants to make consumer grade HD disc playing products, can easily develop them to match their HD televisions.
Sony may also struggle because of known flaws in past systems. The orginal Playstation that would only work if you flipped the console upside down. The PS2 that would no longer read the CD standard discs forcing consumers to buy the new slimline PStwo model. These are reasons some may be cautious to shell out $600+ (US) for an entertainment system. Sony's track record with past "industry standards" for laser quality have been significantly below par. If you look at the numbers of PS2's and PStwo's sold worldwide, it does not account for repeat purchases of product after the warranty has expired. These reasons make people a bit pessimistic about PS3 and BlueRay.