This is a seemingly simple but actually tortuous question. First of all, let&;s look at this set of paper-cut stamps newly issued in 2018: the face value is 4.8 yuan, while the market price is 2.4 yuan, which is almost 50% off. If you buy it at the original price, it is equivalent to depreciation. If you buy it at half price to send a letter, it can be used as the original price, which is equivalent to appreciation. In other words, whether stamps appreciate depends on your purchase price and how you use them. Of course, you may think that I&;m teasing you, and I do have the ingredients to tease you, but it&;s not entirely because it&;s the truth. Furthermore, if the value of stamps is doubled, but the postage is increased by five times, do you think stamps are value-added? Let&;s look at foreign stamps again: these three stamps are Czech, British and American stamps, and their common feature is that the face value has been cancelled, while Britain has partially cancelled it. That is to say, the face value automatically changes with the adjustment of postage, which is equivalent to preserving value. And whenever the postage is adjusted, these stamps are &”;more valuable&”; than those with fixed face value, but the stamp market often still takes a fancy to those high-value tickets with fixed face value. That is to say, if you buy stamps to make money, the value of stamps is determined by the market, and this kind of fluctuation is not a common phenomenon at all, but depends on which postal merchant wants to promote. So it&;s no easier than buying stocks. If you cultivate your sentiment in order to improve your cultural accomplishment, congratulations, the value of these four dollars and eight flowers will not bring about the appreciation of money, but the appreciation of your personal accomplishment. So, if you really need to invest, choose other reliable projects, or put stamps.