Although, since on the way to 99 almost all of your xp will be from herblore habitat, it's questionable whether its worth it to get the bonecrusher solely for hunter over better rewards. granted, eventually you'll want one for combat AND hunter so buying one ultimately benefits you in the long run, but there are better things to prioritize especially since pretty soon you'll be hunting salamanders, and then jadinkos, where the bonecrusher is useless.