Just preparing to put an iPhone 4S on eBay. The cable became damaged and now does not work. Would it be best selling it without the cable or should I purchase one from Apple for £15 and include it with the iPhone?
Sell it without the cable. Mention in your listing that the cable is not included. When you go to the phone trade in sites, they have the option to select whether the cable and charger is included and the difference is usually a couple of pounds especially since the 30-pin is an outdated connector. Just adjust your price by that amount.
buy a new one from apple and then you can add like $35 to the price and it will probably sell faster because people like when it includes the chord plus it is a new chord!!!