300GB holographic discs

InPhase announces 300GB holographic discs via Engadget

This is great, but I have two questions. One, how much does it cost? Two, HOW MUCH DOES IT COST?? I do not care if something takes a week to backup and restore, I would love to get backups of my data but the cheapest and easiest way to do that now is to buy extra hard drives and use them. I do not need speed. I do not need portability. All I need is cheap, reliable and big enough to handle the largest HD I have (250 GB right now, though 500 GB would be preferable). I know I can get this today with tape, but it's too damn expensive. Come on... there's got to be a better way.