The prosperity of the mobile phone market can be mainly attributed to the huge price difference of parallel imports. Often in the grey market for mobile phones, one can buy a grey-market phone for almost half the price of the official retail version. The huge price difference has attracted countless people to turn their attention to grey-market phones. After all, with the price right there, who wouldn't be tempted? Because of this, buying grey-market goods also carries significant risks. The vast majority of people who buy grey-market phones are not "mobile phone experts," but are attracted by the price. A very small number of "enthusiasts" are truly knowledgeable and come for the joy of playing with their devices. Many ordinary consumers lack self-protection awareness, don't know much themselves, and will believe whatever the seller tells them, as long as the price is cheap, it's OK!