DYFL: Didn't work that well live. I wouldn't mind it on DVD but U2 would never use it.
IGWSHA: Really didn't work live, and you'd have to add the version of UTEOTW out of which it segued, and there is already a UTEOTW on the main feature.
Slow Dancing: I suppose. But the only proper, full band version of that was done on Elevation.
Bad: Popmart versions weren't that good. Plus, it's already on other DVDs.
MLK: Isn't really much of a song.
40: Was performed in a watered-down form on Popmart. Hardly worth adding to a DVD.
Unchained Melody: Same as 40 and MLK, plus it's a cover. Not interested.
Edge karaoke: Doesn't interest me.
Holy Joe: I'd like it on DVD but that was a pretty rough performance and wouldn't make it for similar reasons to DYFL.