hello, i'am new to wow retail and currently playing on 10-days trial account.
i read those registration guide but it seems to be out-dated, is it?
and i need to know if i want to continue to play after this 10-days trial,
do i only need to buy the starter pack, or i need to buy starting pack AND the game card(the 2months topup).

for the starter pack, where can i purchase it? is there any online vendor provides selling the Authentication Key? and about the price..