I suspect there are many people who watch the movie and don't give a monkies about any of the extras or features on DVD let alone the HD formats and as such would be quite happy with a Profile 1.0 player.
That said I would not be surprised if thousands more buy a movie and then find their player doesn't support the features they want to look at.
Without any doubt selling players that could not be upgraded knowing well in advance the P2 spec was the ultimate goal was not a consumer friendly decision.
Personally I've always made full use of DVD extras and owning a HD DVD player it could do the Blu-ray P2 functions from launch so none of this nonsense but hey it's sold a few million extra PS3's, makes you think