Simply because someone may balk at paying that much does not necessarily mean they do not have the resources to keep a cat fed and healthy
I don't know about your vet, but last I knew, my vet takes Visa, American Express and Master Card. Love don't pay the vet bills.

What if an emergency comes along and the cat needs a vet. I'm sorry. But I've been in rescue a long time and have seen SO many cats get dumped because they "can't afford" to get them the medical help they've been promised, as a responsible pet owner.