Forget their blue ray releases, here's something even more amazing from Criterion: online viewing. For $5, you can watch some of their movies online. I've seen at least two on the list, Sans Soliel and Cranes Flying. I would watch Cranes again, but I already got the other.
http://www.criterion.com/library/online
http://www.criterion.com/library/online
But that is cool if you just want instant gratification. I'm just hoping Netflix gets these discs in.