People choose to buy preowned (or preloved) designer goods for a variety of reasons. It could be that an item is discontinued or no longer being made in that style or colour, or it could be that the buyer wants a vintage item with a specific appearance such as the famous Louis Vuitton vachetta patina.
The Speedy is Louis Vuitton’s most popular handbag. Even 80 years on and it is still one of the most sought-after bags. If that’s not the definition of a timeless piece then I don’t know what is!