Is Zhu's calligraphy rubbings valuable for collection?

Zhu Tuopian's calligraphy is very valuable. It is certain that the original rubbings have collection value, but the new rubbings are not expensive, and the value of portrait rubbings is usually lower than that of calligraphy rubbings. I have just been to Gongyi Grottoes recently. This pair of flying stars belongs to both Hu and Han, reflecting the national unity policy of the Northern Wei regime at that time. They are still very representative and worth collecting.