World Alliance Update

Remember that in a world you never played, you only have 3 slots right now. Not sure what's going to happen when they hand out the next free slot (people in an allied world would get one per account? Or one per account per world?) but if you want 60 chars you'll have to pay for most of them.
Also consider that storage isn't shared, so if you don't have two computers, a trusted and patient friend, or a way to multi-log, it would be a pain to share gear with your own char in a different world.

Assuming it's one of those 'if you already have a character in a world, you'll automatically get another slot there after the patch' character slots, you'll get one in all of the worlds