First i have to say, wrong music for that crowd. LOL ! Maybe he's just trying to convince himself that he could do dance music in a large room. Doesn't sound like it to me.
I just don't see anything so amazing for $1200. And whats the big deal about battery power. I'm sure every venue this guy DJs in has plugs.
As in the other threat about this, so many other choices for less money that would do a better job.
Good system for a street busker with a guitar but beyond that not so much.
But if your in love with the BOSE name go for it and enjoy.