The collection of calligraphy and painting depends not only on which painter's works you collect, but also on the appearance and creation era.
Calligraphy and painting collections are different in size and appearance according to different themes, and their prices and values are also different. According to the painter's life course and academic achievements, the price difference is even greater.
Some paintings and calligraphy collections don't need to know their value, which is the same as gold and jade are priceless. As long as you like it, it has its value. You don't have to know its price. I suggest you collect some guaranteed paintings and calligraphy, which can be famous, but the price is higher, but you can also buy them from some guaranteed units. For example, you can promise to return it for ten years in one year, which can reduce the risk of collection and protect the interests of collectors in the best interests.