The only problem with BR is that it was pushed out in hurry without proper standardization and without taking into account the feature set.
Some basic functions and features were and are missing in the players available now. And with the announced reforms many of these players will not be able to utilize many of the new features.
HD DVD when it came out was very well though out and all players out there support all the basic and advanced features like PIP, commentary etc.
And obvious cost factors.
You can get HD DVD players for under $200 now. Also for PC, the Xbox 360 drive is there which is also not that expensive.