I was there and I would buy it. As a 'lapsed' follower, this was my reintroduction to the magic of Steve Harley and Cockney Rebel. I have since been catching up with post 70s albums and loving the poetry and music..... and that voice.... still does it for me!
I have tickets and hotel for Birmingham all booked and often visit this forum. Yes, good enough reasons to buy the DVD methinks.