I would say for launch only, it might have been wiser to remove Blu-ray capabilities only to lower its price. It took a while for Blu-ray to prove itself as a format. I guess Sony just wanted an extra selling point.
But if it was removed for launch, they shouldn't wait until like the PS3 slim released because that's too long. Maybe around when I got a PS3, which was an 80 GB at $399, they could have made it standard for all models then.







