I shall be there, plus two others who don't really post on here.
I think it has to be worth it; why wouldn't you do everything in your power to get a job? I have been to similar conferences and witnessed some people network their way into job opportunities (opportunity being the important word there; still have to pass the interview of course).
Unfortunately now in aviation that word 'opportunity' normally means spending money!
Still lets hope it's worth it.
I will be in a suit, as will the others with me I imagine.
See you there
db