Yunnan is cheap, but if you travel with a group, don't buy things under the guidance of a tour guide, because they have to get a high kickback, so the things they buy for their guests are of the worst quality and expensive. If they buy it themselves, it will be much cheaper, but they have to bargain. Many Yunnan businessmen will use the excuse of recognizing their fellow villagers, but the price he gives you is very unfair.

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Many of my colleagues have been there. Relatively cheap, good quality, but learn to bargain.