I'm not a big fan of the "I'm the only one who has it so I can charge $500" for a old Jaguar game mentality.
Like Dracula X for the TurboDuo. Everyone knows that it sells for $150 but I was glad to see that it is available for download and I finally get to own and play the game!
Now chances are, that the people on ebay buying the Dracula game are simply making a copy, then passing it on and trying to get their cash back. Sure this isn't the same case with BSG because its a cartridge. But if it were on CD, and a straight burn did actually work (not sure, never owned a JagCD) then BSG would be normally priced along with other Jaguar games. Seriously, is the game the best Jaguar game ever? Like the Halo2 for Jaguar?
That's just my $0.2