Do all Pu-erh tea have collection value

No. Usually, the raw Pu-erh tea has better collection value and potential. With years of storage under the appropriate condition, the raw Pu-erh tea will ferment naturally and the quality will grow better. The ripened tea, or the artificially fermented Pu-erh tea, has fermented in the making process and completed the aging process. There is little value for the long time collection.