Great Show! They played it in Utah just a few days after the big halloween show, where they traditionally play another band's album as a "musical costume." Utah was not sold out, and they busted out DSOTM to everyones surprise. Check out
http://www.nugs.net for some other great shows.
Not sure if it has already been discussed, but...
Other halloween album covers include:
The Beatles - White Album
The Who - Quadrophenia
Talking Heads - Remain in Light
Velvet Underground - Loaded