Much will depend on which country you are in. Given the $180 you mention then very probably the US or Canada where the nominal supply voltage is 115V - there's a strong possibility that the board needs the higher current fuse - 15A - so 15A 250V will (should) be fine....HOWEVER...
Something caused the fuse to melt - too much current flowing - the fault that caused too much current to flow may well still be present somewhere in the equipment (on the board or external to it) - it's more than probable that any new fuse will blow immediately. You may get lucky - I would guess a 5% chance at best.
9A fuse for Europe - 15A Fuse for USA
It's by no means certain that a new $180 PCB will fix the problem - the fuse on that may blow too if the fault is external to the board. You really need to find out why the fuse blew.
Good luck...
Peccavi
February 2010