I believe they're focusing their cash on the most important of things.
If they did, in fact, pay $100K to be the Diamond Sponsor of the Wall Street Conference (for example) -- I'll assume they're aware of the potential it can bring.
But, until the Q is out showing their 'marketing expense' -- we don't even know FOR SURE they paid $100,000.
I'm only saying this as an open minded person who gets deals on advertising/marketing in my community when people I know are selling. ;) Wishful thinking, but again, either way... Paying $100K to get in front of the Deep Pocket folks of Wall Street and Venture Capital may end up being "a small price to pay".