[EDIT] Wow... Star Ocean 2 also seems rare - £69.99 "Buy it Now" on eBay!
Heh, got my copy at a pawn shop for $19.99 (CAD). =\
Good game, aside from the fact that last boss is $#@(*&$%(*#@*&$)(@#ing hard, quit playing after getting my characters to lvl 112 and still getting whooped.
Totally forgot about BoF IV, to the point where I should go back to playing it & beating it right now....