At least in the case of Josh Groban at the Dodge Theater (last night in Phoenix, AZ) versus Josh Groban in my listening room with tweaked-out RM/X...
No comparison. Much better sound in my room
Sonics were much better at the America West Arena for Sarah Brightman's "Harem" show back in March. That one was worth paying big bucks to Ticketmaster to see, rather than listening to the CD at home.
Next recorded vs live showdown: Sarah McLachlan July 25 at the Glendale Arena ...