Guild Wars Battle Pak 1 worth it?

Arkanius

Academy Page

Join Date: Jan 2006

Ordem dos Templarios

W/

Im considering buying the Guild Wars Battle Pak 1.
I mostly do GvG and HA and stuff, and I usually turn off the music because I feel it doesnt fit into the action.
However I wanna know if that Battle Pak adds anything to the PvP modes or if its worth the money (Hey, I PvE too!)

While Im on it, is the Guild Wars OST (From DS, the one with 4 bonus musics) is worth it too? (Extra tracks and extra quality?)