the packs are a pure rip off.
there some items inside the packs i never see on any server i played.
like some flyers or other rare items.
the only pack i know who is worth buying..is the battle pet pack.
most **** from what you get some millions back, like bm flyer, the dog pet and then...if you get a herc/nix you can sell for 90m.
and yes, the server "open" the pack and send back the item code.
you open pack -> client send to server -> server roll some **** -> send **** back to your client -> you cry about the lost money