spots in cemeteries are also usually only affordable for the propertied class too. for many in the working class they're not viable.
do our cities really need to reserve and block off sizable physical spaces for decades, when we have a housing crisis in most cities around the world? i am all for beautiful ceremonies and the like, but the use of excessive physical space in cities seems outdated.
consider also that we now have photos, video and other digital media to help us remember loved ones and keep them alive in our memory.