I think the use of the wording 'pauper' in relation to burials in public graves is completely wrong and our ancestors would be horrified to think that we thought that way.
Historically, paupers burials were paid for by the Board of Guardians where the death occured in the workhouse or the person was receiving relief.
See this article on the Poor Laws
http://www.workhouses.org.uk/poorlaws/newpoorlaw.shtmlThe cost of purchasing a private plot in a cemetery (as opposed to a churchyard) has always been expensive and in many cases, prohibitive. Even today, plot fees cost many thousands of pounds.
See the example from Kensal Green, one of London's Magnificent Seven and still open today
http://www.kensalgreencemetery.com/memorials/index4.htmlWhy horrified? the families may not have been able to afford the plots, but they would still have scrimped and saved and clubbed together to pay for the best coffin, funeral and flowers they could afford.
In today's society, if a family cannot afford to pay for the funeral, the state will help with a grant, but in these cases, burial is not an option as cremation is cheaper.
See this recent newspaper article
http://www.theguardian.com/society/2014/oct/20/paupers-funeral-austerity-britain-soaring-costs-bury-loved-ones