If the treatment allowed you to live over a decade longer then you could live long enough to get another treatment option, this has been true about AIDS drugs.
But if the treatment allowed me to live over a decade longer I'd also choose the treatment even if there was no chance of a new cure.
If the treatment only allows you two or so extra years, unless something is already in the late stages of coming to market, there is just no way any kind of drug or therapy for humans will get through even the earliest stages of approval in that kind of time frame.
I think the point is that the treatment leaves you with a ton less energy and hunger and power, etc. Otherwise there really is no point in skipping the treatment.
For me #1 is easy. Screw writing and reading, instead travel around the word, jump from planes, swim with sharks and die in months. 100% better then daily visits to a hospital for a handful of years.
What I, and a lot of people like me, are doing now by not doing #1 is gambling we'll get to do it in the future. This is an easily lost gamble, but oh well.
But if the treatment allowed me to live over a decade longer I'd also choose the treatment even if there was no chance of a new cure.
If the treatment only allows you two or so extra years, unless something is already in the late stages of coming to market, there is just no way any kind of drug or therapy for humans will get through even the earliest stages of approval in that kind of time frame.