FamilySearch.org now has transcripts and actual copies of death certificates from a number of locations and are available at no charge. I try not to spend money on my genealogy hobby so this is good news.
I found the death certificate for my wife's great grandfather, John William Glenn. It shows he died as a result of Hodgkin's disease. When he died, 63 years ago today, Hodgkin's disease was almost always fatal. Today most people who come down with it are treated and recover.