We're not talking slot-loading blu-ray, and it really doesn't costany more than regulars drive. That's all I have on my PC; 1 DVD slot-load and 1 Light Scribe Dual-Layer DVD slot-load, the first one was on 2 dollars more than the one I wanted, the second 10 dollars cheaper than what I wanted too. I would worry about missing the loader and scratching the disc, nor a motor burning out any time remotely soon of halving it. It also would cut down on "dirty disc" errors. The fact now is that it's still a tray-loader now matter what. Who knows, maybe a nice inspired mod *hint, hint* when 360 comes out to put a slot loader, or a PS3 blu-ray slot. I'm sure it would be possible. For now it will not change so no dice.
PS:
If I had the money to throw away on a PS3 I would rip it apart almost as fast as the box, just to see whats inside for myself.