No idea about the expo fees but I'd estimate the trip would have been in the 5, not 6 figures.
We all have to speculate because we aren't privy to the ongoing negotiations but if they are confident in near-term access, then it would make sense to be trying to spruik to the yanks.
TMG Price at posting:
3.0¢ Sentiment: None Disclosure: Held
A personalised tool to help users track selected stocks. Delivering real-time notifications on price updates, announcements, and performance stats on each to help make informed investment decisions.
(20min delay)