I had regretted not purchasing this dvd when I visited Chelsea in '06. So, if you go to a special show in the future, think about purchasing the dvd then...and not having to fret about it later!
At the time, I thought that all of my pictures would suffice, but I quickly realized how nice it would be to see the exhibits without all the crowds. It also affords you the time to linger that you might not get at the show as well. Plus, it's just a very nice keepsake...who knows if I'll ever get back!