It's probably true that many people won't buy a PS3 because of the extra $200. And it's definitely true that Blu-Ray complications handicapped the PS3's launch. I think the decision to force integration of PS3 and Blu-Ray has, and will continue, to hurt the PS3's sales. The decision definitely hurt them with regard to the video game console war.
However, with regard to the format war (which Sony may consider a higher priority than winning the video game war), the decision may have been the right one. Even with the lower number of overall PS3 sales, I still firmly believe that many more people will own PS3's than HD-DVD players by the end of 2007 (but I also believe more people will own 360's than PS3's).
It was noble that Microsoft gave consumers the choice about HD-DVD, and I think it has, and will continue, to help 360 sales. The problem is, there simply isn't (at this time) enough education or incentive for most consumers to make the investment in the HD-DVD player. It's a great technophile device, but I doubt it's going to steer the format war, as Rob Enderle predicts.
That's not to say Microsoft made a mistake. I think it's clear that Microsoft is trying to win the video game war above all else, and I think they will. And I think they have a far lower stake in the format war than Sony does.
So, I think Microsoft made the right decision for Microsoft, and Sony, assuming they really want to win the format war, made the right decision for themselves. But the PS3 is gonna have to take one for the team.