Some questions on online shippment.

I love to order games online. Let me xplain this first: when a game is produced, the factories will make many copies of it and so are plastic cases, then they will send those newly-packed games to retailers over states. I am just curious: when you order somethings in EB site, do they directly pick the games in their store shelves to pack and send to your house; or do they just make call to those industries I mentioned to send the game I ordered to my houses? I often see some paperbag-like boxes and so on sent to the GameStop store where I was shopping at, and I assume those boxes are just similar as the ones sent to my house, so just a hypothesis. Does that mean the games I ordered online will be as new as those sent to stores without some silly sellers wrapping them off to take peek?