While storing hundreds of movies digitally isn't too tough if you have a large enough hard drive, storing that many on discs for easy viewing is a much less practical thing to do. But hey, if you're completely resistant to the inevitable march of progress, Sony is more than willing to take your money.
That's why they're offering up a ridiculous 400-disc Blu-ray changer. Yes, 400 discs. That's at least $10,000 worth of movies, so you know this one isn't aimed at your average consumer. Look for it to cost a good deal more than $2,000 when it's eventually released.