I don't think I agree with that. It's gonna still cost you more. Since you paid import fees + sales tax and everything just for that 1 item. Where as when the big shopkeepers sell you their charges get distributed over the whole unit and they buy at wholesale rate.Its good for expensive items like GPU when even after paying shipping and customs it still sometimes become cheaper then our local market rates.
IMO it's gonna cost you more. Either way, if you don't wanna check with a cheap item all you can do is risk buying an expensive one hoping whatever they've written is true.