Is Zhang Kunshan's calligraphy worth collecting?

Teacher Zhang Kunshan is a famous calligrapher of contemporary strength school. Elected director of China Book Association for five consecutive years. Without a certain strength, he can't be re-elected for five times, which is very collectible.

It is understood that the army calligrapher Zhang Kunshan's runge has been adjusted this year, fluctuating according to the number. Usually 5000 yuan per square foot. You can get a discount of 3000 yuan a foot if the quantity is large. But seal script and fine print are more expensive.