In Canada, I have a friend who has been receiving prostate cancer treatment for some time now. Out of pocket cost, zero -- unless he's taking any prescription drugs, which will be covered by his public service retiree group plan, with a very minimal annual co-payment. My partner's mother is receiving lung cancer treatment at present. Out of pocket cost, zero, and no prescription drugs that I know of, but if there were she'd be covered by the rather complicated senior cits' drug plan in this province, which would be a max of $100 a year, I think.
Lots of expensive taxi rides, though.
In the UK, there are two different situations. The first would be tratment under the NHS, in which case the out of pocket expense could be expected to be zero. The second would be "going private", either by having private insurance to cover treatment or by paying for treatment out of pocket. They'd have to be considered separately, really.
Intersting that Rudy didn't mention Canada -- a quick google produces the info:
http://www.cancer.ca/vgn/images/portal/cit_86751114/59/33/1836654978QC-FailtsSaillantsCancers-07-EN.pdfThe prostate cancer mortality rate began to decline in the mid-1990s. Between 1994 and 2003, the mortality rate dropped substantially (2.7% per year), most likely due to early detection combined with better treatment.
Survival
In Canada, the five-year relative survival is 91% for prostate cancer.