Actually I'd read the box. When you buy the game, normally the first 30 days are included with the box price but you WILL have to give billing information when you create your account so they can bill you later. You can cancel your account the DAY you begin playing and you'll have access to play until the first 30 days ends and not worry about being billed again. If at that time you decide you want to continue, just edit your billing and renew your subscription at the pricing plan that you think you'd like. The longer you pay for the more of a discount you will get.
I wouldn't call it a free trial because the price of the first month is included in the box if you are opening a new account with fresh CD keys(as opposed to buying someone else's existing account). But, you don't buy the game and then ALSO have to pay for the first month on top of the original purchase price.
Edited, Wed Mar 17 22:33:41 2004 by KerikDaven