Buying a sim card on ebay

If you are on about sim cards for a mobile phone, you can buy them on ebay. I have bought them before off there, plus I have also sold them on there too.

Why not just go buy one at a local store or something. The only difference is you might get it deliverd to your house. But are you that lazy not to go to a store to buy 1 little sim card. Im sure you could buy a sim card on any other online shop, try searching for buy sim card online in your area...

If you are talking about prepaid sim cards, I'm sure somewhere it is available though I haven't really checked... But if its not available, one reason I can think of is that the service provider wants to record who's using what card, although I don't know how useful such information is to the service provider unless its a post-paid sim card where they have to do billing...