What is special to buy in Hong Kong?

What makes Hong Kong a unique destination for shoppers looking for something special? Is it the bustling streets lined with high-end boutiques and malls offering the latest fashion trends? Or perhaps it's the vintage stores hidden in the backstreets, where you can uncover rare finds and unique antiques? Whatever the case may be, Hong Kong's diverse retail scene promises a shopping experience that's truly one-of-a-kind. So, tell me, what specific items or experiences should visitors prioritize when seeking out the special buys in this vibrant city?