1. Category: The types of alcohol in supermarkets and convenience stores are not as rich as those in duty-free shops and wine cellars. For example, China Macau Duty Free Shop, a shopping center with many branches, has a huge wine area with various world famous wines, including French red wine, scotch whisky and Japanese sake.
2. Price: The price and quality of goods purchased through different channels will be different. You can choose the most suitable purchase method by comparing the price and quality of different channels.
To sum up, duty-free shops may be a better choice if you want to buy more kinds of wine and have requirements on price and quality. However, if your shopping needs do not include buying large quantities or very special wines, then supermarkets or convenience stores may be more convenient. No matter which purchase method you choose, you need to know the market situation and purchase strategy to ensure that you can buy good quality and cheap goods.