re: If the PS3 is primarily for games ?
You make several mistakes in your rant.
You imply that HD DVD is red laser based. This is untrue, both Blu-ray and HD DVD use blue laser.
You also say that Blu-ray is slow. It may be, if you look at Microsoft BS stats, which falsely claim that the 360 has a 12x DVD drive, however if you scratch the surface of Microsofts BS specs, you see the real picture. The drive specs show that 12x is only achieved on the 360 for single layer DVD. for dual layer (DVD9), it's actually 8x. Now because the drive is CLV, and the transfer rate is only achiveable on the outer part of the disc, the rest of the disc runs slower, the inner part of the disc considerably slower. Blu-ray on the other hand, uses CAV, and has consistent data rates across the entire disc surface.
In short, a small part of the 360's DVD surface is marginally faster than the PS3's Blu-ray disc, but the rest of it, is similar, or vastly slower, depending where on the disc it's located.