Moors murderer Ian Brady claims it has cost the taxpayer £3m to keep him alive on his hunger strike.
Brady says he is now a 71-year-old "skeleton", 10 years after doctors initiated a programme of feeding him through a nasal tube.
In a letter copied to a news agency, the serial killer reaffirms his wish to die and condemns the expense to the public purse of prolonging his life.
Brady is being held at Ashworth Hospital, the high security hospital at Maghull, Merseyside.
He writes: "I request and expect nothing from the vermin here, except a coffin, and am politically force-fed as they can't leech a living from dead bodies."
Brady is kept alive thanks to a liquid nutrition mix fed into his stomach twice a day.
He spends most of his day in a room where he has a bed table and bookshelf.
He drinks only black coffee and since a smoking ban was introduced in July 2007 has abandoned his 40-a-day cigarette habit.
Brady writes: "The moral, professional and mental bankruptcy of Ashworth, where corrupt over-manning and continued fake employment of redundants means it now costs over £300,000 to store a tramp, immigrant or minor thief, per annum.
"In 'Trashworth', I am the only high-profile prisoner they possess to demonise the population in general, and fool the public with a seventy-year-old skeleton, with over ten years on force-fed hunger strike."
"I had better conditions, company, and trust in the Durham Special Security Wing back in the 1960s, along with the Krays, and train robbers, than I've ever had, or ever will have, in this pigs-trough for substandard prison wardens and clerks, costing six times the per capita of an honest prison."
In 1966, when Brady was sentenced to life imprisonment with co-accused Myra Hindley for a string of child killings, the judge described him as "wicked beyond belief, with no reasonable chance of reform".
Brady recently said he was abandoning a legal battle to return him to a regular prison where he would have the right to refuse force-feeding and starve himself to death.
Brady's solicitor Richard Nicholas said the £300,000 annual cost of holding a patient at Ashworth was based "on the overall cost divided by the number of patients who are detained at the hospital".
Ashworth chiefs declined to confirm the amount.