I think a lot (but not all of it) depends on the emotional attachment to it. If a pet of mine is new I think it would be easyer for me to let it go. BUt if I have had it for a period of time i think it would be harder to not see a vet. For me it would also depend on the amount for the vet bill. Even if it was high, if I could afford it I probably would. IF it was extremly high, I probably wouldn't be able to bring myself to do it even if I wanted and could afford too. To me, to pay more to heal an animal is ok but to pay a ridiculas amount, above the cost of a new animal, doesn't seem right. I know most people will think I am cruel for saying this. I kinda feel like I am a bad person for saying it, but truthfully that is how I feel. But again the more emotionally attached I am to an animal the more amount I would pay to see a vet.