Dunno, the most I demand is a Million or 1.5 Million, but only for Transports above level 70. The usual I demand was always being 500K, I even let a Gold Ore Transport pay a half Million. Stupid? Not really, why should a Pirate know that the Gold in the Transport is Ore and not normal one, aswell where the hell should the pirate know that this stuff is worth 40 Million Credits.
But sure, if you want higher demands :P
"Who is it doing this synthetic type of alpha beta psychedelic funkin'?"