FYI most of the Big Stuff debuts in Munich each year especially products that not made in the USA. I think that is the major reason since Munich is both a B2B and a B2Public show. Axpona is not but still the largest US show. Timing with them a few weeks apart does not help.
Perhaps Axpona should be in Sept/Oct just in time to make holiday gift decisions and prepare for the upcoming winter listening season.