just walk walk,see see,go home.
There is such a thing, or at least was.
It was called PALA, I've attended 2 such events here in Singapore.
A massive light, sound and entertainment fair held in Singapore. I remember checking out one off Washburn custom shop pieces complete with hot as hell Washburn girls. A cracked mirror top Paul Stanley guitar and a few of Dimebag's personal guitars too. Also I remember watching a demo by Roland on their computer recording equipment.
To my knowledge the event eventually fizzeled out.