Just a dumb question -- the cost of shipping is not included in the $30 max, right?
Yes, that is correct. The gift should cost more than $20 and less than $30. This is a total figure, not including the price of shipping. If you want to do three gifts at around $10 each, or one large gift at around $30, that works fine. Being that this is all about classic games and toys, it's okay if the item is used so long as it's something you think would be really special to the person you're sending it to.
Not a dumb question at all! It's important to clarify this stuff and get it all out in the open.