We should see stand-alone player prices down to $200 by the end of 2009, after that it will take another 5 years or so in order for the patents to run out, meaning that once manufacturers don't have to pay intellectual prop fees, the price of the players will be lower.
Also, by about 2013 we'll have OLED TVs around, which will supposedly* cost around 60-70% of what a similar LCD HDTV would cost so look out for OLED TVs making a big thing out of high def. They'll not only give brighter picture colors, deeper blacks, but delivrer great definition, use less electricity, be as thin as a MacbookAir, and will be a bit cheaper than similar LCD TVs. Better, cheaper HDTV means more interest in Blu-ray, but just give OLED a few years to get out there as the technology is just getting out there.