I am struggling with this same decision. There for awhile all anybody ever talked about was ACDC premium. I've always liked their music. So I decided this had to be my next pin. But they are not easy to find. I am attempting to work out a 3 way trade deal for my WH20. But it has kind of stalled out. In the mean time the excitement over ACDC seems to have finally died down. Now everybody seems to be talking about GOT and TWD. I'm still holding out hope for an ACDC but if I can't find one soon I may have to try TWD.