Not only Amiga software and Hardware are important.
It is important also to invite famous former Amiga users to attend the show, such as Dave Hanyie as developer, musicians like Susumu Hirasawa and Todd Rundgren, actors like Dick Van Dyke, some of the scientists working at NASA, and developers from competitor firms like Apple and Atari, who developed Atari ST and MAcintosh II.
Louis Gassée former Apple production manager and then BeOS CEO is one of the names that came to mind.
Event organization team should invite them wiith a reasonable amount of time to allow them to attend the show, and pay airplane and hotel fees for them.