For millions of years 'people' did or made cool things. There must be billions+ of artistic objects and acts lost from the past. Does it matter if they ALL do

For millions of years 'people' did or made cool things. There must be billions+ of artistic objects and acts lost from the past. Does it matter if they ALL don't make it? (I wish a lot more did, but ALL?) In fact their loss adds value in many ways, if Woodstock was exactly the same year in year out would it have been as special to those who went.