One issue relates to cost. Traditionally a single payment is made at the time of burial, but the cemetery authority incurs expenses in cemetery maintenance over many decades. Many cemetery authorities find that their accumulated funds are not sufficient for the costs of long-term maintenance. This shortfall in funds for maintenance results in three main options: charge much higher prices for new burials, obtain some other kind of public subsidy, or neglect maintenance. For cemeteries without space for new burials, the options are even more limited. Public attitudes towards subsidies are highly variable. People with family buried in local cemeteries are usually quite concerned about neglect of cemetery maintenance and will usually argue in favour of public subsidy of local cemetery maintenance, whereas other people without personal connection to the cemetery often argue that public subsidies of private cemeteries is an inappropriate use of their taxes. Some jurisdictions require a certain amount of money be set aside in perpetuity and invested so that the interest earned can be used for maintenance.