If you don't have much online shopping experience, I suggest you go to Yixun, JD.COM, Newegg, 1, Amazon and Suning to buy your own products, which are absolutely original and authentic. Some stores of Tmall, as well as some non-self-operated goods of Yixun, JD.COM, Newegg, 1 Store, Amazon and Suning.cn, are all opened by the original Taobao merchants, so be sure to read the comments and buy carefully. When is the cheapest time? This is not a good answer. I think as long as the agent is suitable, provided that you always pay attention to his agent and know what kind of agent is cheap. Double 1 Christmas and New Year's Day are coming, and there will be special introductions during these periods! It must be cheaper than usual. I suggest you pay attention to the sales and introduction of this machine, and then act when appropriate. Every day and every week, Yi Xun will have some special introductions of commodities, and sometimes it is appropriate to make an introduction. You can also pay attention.