I used to work at a company that had basically one client, the US Navy, and it would still go to expos to show of its products to different parts of the Navy.
The government is not a monolith, where everyone shares the same hallway (although the Pentagon might come close...).
Palantir Finance sells to hedge funds and financial institutions, but the whisper referrals work in that insular industry just the same.
These guys need salespeople and marketing folks like I need a hole in the head.
EDIT: turns out I was wrong about the GSA schedule: http://docs.google.com/viewer?a=v&q=cache:ffLq8fxcGdAJ:h...
EDIT 2: Ha! The last page has their pricing. And it comes with a 90 day warranty!
EDIT 3: Double ha! "Implementation Ninja Services" is the official name for their lowest-level customer support.