Like the theisgroup says,

You can buy them outright without having an AMB to be cloned.

I did read in one of Terrys posts that you can send it back later, along with an AMB and have it cloned in (change the 21st number)... But if your gonna do that, you might as well bite the bullet and get a pt first to send over... save yourself shipping one way.. thats what its about.. saving money.