Replying to [GoldStar]:
It all depends on your business terms with the seller and your shipment arrangements.
Sometime, it is even cheaper and easy for the seller to send you the shipment as he can control the expenses by negotiating various services in country of dispatch.
If you can do a good analysis of the shipment expenses and negotiate with sellers accordingly, it is advised to use the services of seller for shipment to avoid delays in shipment and discrepancies in the documents.