And just because you can afford it does not mean it really is the best or right thing. I had a good friend who lost his lab Tuba to cancer. He spent close to five grand in treatment, In the end it prolonged his life about 4 months which where all miserable. I understand having to do all you can and you never know but in his case at least treatment was the wrong call.
Yes that is a very tough call. Hard topic to even talk about