I have this attitude about "fatal illnesses" that comes partly from a Heinlein novel, I Will Fear No Evil, where an uber rich guy who wants to be allowed to die (but is kept alive against his will) comes up with an outrageous plan to fund and participate in a brain transplant experiment. He's sure that he won't survive and that will get around his problems. Unfortunately (or fortunately, depending) it works out.
If I were terminal, or even just "hopelessly" crippled, I'd go out of my way looking for "kill or cure" type of treatments. Again, what would I have to lose?
True. (...and, you could become famous after death if it didn't work out.)