Great, your article has almost found a new home! :)
If your item is in a virtual shopping bag, it can still be seen and bought by all other interested shoppers. If the user does not go to the checkout with the item, the item will stay there until it is deleted or bought by another user. Whoever goes to the checkout with the item first, has got the item.
First come, first served.
Here you can find information about similar topics:
How can I add an item to the wishlist?
How can I change the price of my item?
What happens if I reduce an item that others have liked?