What about replacement costs? I'm not sure who sets the amount of the fine, but a trophy buck like that can get up into 5 figures on replacement fees.
I believe the ODWC determines the value and only the judge has the ability to put the restitution in the sentencing. In this case the District Attorney chose the easy way and let these fools plead guilty to lesser charges. At least it appears that plenty of evidence was available but the DA decided not to press the charges that the Game Wardens filed.