Is Jaundiced Bone Bracer a waste of money at my level?

[WokeCat]

I'm level 48, and will likely hit level 49 tonight. Someone said you mostly only use the JBB between 45-50? So I'm like curious if this is true, or if this is an item I will actually need at high level in order to min/max, thus making it a wise investment?

I recently came into some $$$ because of the 100% loot bonus, but I would rather save the money for my level 56 DoT since it cost like 18K and I'm paranoid if I spend the money now, I won't make 18K again by level 56.

I know this isn't the Shaman forum, but I feel like this is the only forum people really post on??