Dear Ahmed sahab, buy a Brand spanking New DS, why ? because the low priced video games like gameboy / psp / ds have very good resale, you ll get 1 for 2 to 3k less but you ll never know what it holds, will it run good for sometime or not, so better buy a brand spanking new 1 but yes if some pakwheeler gives you a clean piece with warranty, only then you have a choice to buy a little used 1.