Not the least bit crazy, if you believe a beings real worth bears no relationship whatsoever to its initial cost in dollars or the cost to do it in. I could buy a small country with what I've spent on vet bills (maybe even a large country!), and at times work 3 jobs to be able to pull it off, but when it succeeds in bringing quality back to their lives, and they go on to experience joy, it feels priceless. As with anything, not everyone would agree, or be able to do the same, but no matter. You are doing what your heart tells you and I hope the vet is able to help her at this point. Sometimes despite our best efforts nothing can be done, but it is clear you will feel better for having tried.
JJ

JJ