This includes all the features outlined in basic package with the added benefit of allowing your suppliers to manage their own products and orders within your site. (see features)
Each provider manages his own products, orders, VAT, shipping, independently of other providers. However, the store has a joint catalogue and a common checkout point, so the customer needs to place only one order.
Prices exclude VAT where applicable
An online store will allow you to sell to people all over the world, potentially increasing your sales.