I picked up the 2-disc DVD from eBay about a month ago. (It was brand new, sealed and I only paid about $11 after shipping!)
Royal Albert Hall is on my bucket list. It's arguably the greatest concert venue on planet Earth. It's the perfect venue for Gilmour. Even a marginal Floyd fan will be blown away by this performance and it's a must for any guitar aficionado.
Leonard Cohen also has a video from Royal Albert Hall. It's a keeper too.
Nothing is anything until it is written. After that, it's everything.