You can spend as much as you want to. Human level health care is available for pets. Life has value - repairing it costs other lives in terms of work hours; honest question is whether it is worth your own years to give a pet more months.
*** FILE *** Leona Helmsley and her dog Trouble photographed in Leona Helmsley's Park Lane Hotel apartment. Friday, January 31, 2003 in New York. Helmsley left her beloved white Maltese, named Trouble, a $12 million trust fund, according to her will, which was made public Tuesday Aug. 28, 2007 in surrogate court, according to published reports. But two of Helmsley's grandchildren got zilch from the late luxury hotelier and real estate billionaire's estate.