The same doesn't hold up for video, which eventually just turns the picture into muck.

I think that using the analog tape is somewhat similar to the tube amp issue. The digital protools ensure that what you record today will sound just as good tomorrow and that the source will not introduce any artifacts. I've heard that tube amps introduce some even ordered distortion that people really dig. Probably the same idea - the distortion in the sound signal might help to make the tracks sound, I don't know, less digital, more organic, etc. I know that Tweedy is a real nut about doign things the "right" way 0-using tried and true methods. DEspite his tendancies and willingness to experiment musically and sonically, it seems that he's really a traditionalist at heart. I love that Wilco stuff - you also can't get my brother to stop gushing about it.