Of course the show is good for any individuals right at the beginning - if only to make them aware of the real cost in effort, time and money to become a pro pilot.
However, if you are still needing flight training (CPL / ME / IR etc) then you should make the effort and go, and really get face to face with the FTO's and find out what makes their organisation different. Plan your questions in advance, and make sure you get behind the bullxxxx.
Too many students still complain bitterly about the FTO they chose to train with - after the event. Maybe attending this show with the real purpose of meeting the FTO principals and grilling them (not just picking up their glossy brochures) - before making your shortlist as to who to follow up and actually visit, and ultimately spend big money with is a good investment.