Six Feet Under Boxsets

[hardtosayx]

I saw that there are two versions of the Six Feet Under Boxsets, but what is the difference between the two other than the boxes? I know the larger one is discontinued or whatever, but people still have them to sell. For those who have either one, which is the best to get?

I would wait for the BD release, but since there is no word of it yet, I thought I'd get it now.