Been to this event a few times and always enjoyed it.
I suggest you walk a couple of blocks north(?) and have a decent meal at "THE ORIGINAL PANTRY'. If you don't want to stand in line at the Expo you might be able to get a faster picture at the Pantry as most of the well-knowns will be there having lunch.
I'd also like to recommend the yearly 'Gym-equipment' event which I believe is held each year in the San Diego area.
I only went once and I forgot the official title but I gotta say that I was darn impressed and was introduced to a lot of heavy duty gym equipment that I've never seen before .... and also met a lot of the old timers who represented some of the equipment manufacturers.
Maybe RON will offer more information because it's worth attending if you live in the So Cal area.
The gym equipment event is called IHRSA??? Been to it. The Original Pantry is good, but only CASH, and there is usually a line too. LA Live area is cool, with lots of restaurants, which is right next door next to the Nokia Theater, across from Staples. Over the years, we have eaten at various places there, including the Yardhouse, Katsuya Sushi, Smashburger, Lawrys Carvery, Rock n Fish, and the Farm of Beverly Hills (good kids menu).
And the Grammy's are being held at the Staples Sunday night so it will be busy...