I've been giving the vet money here & there when I have some extra. If I put it in savings some other emergency/urgent need will come up that I can spend it on. I'd rather the vet have it and I make no interest so I know the money is there for Princess period. If I had a car emergency, outrageous utility bill or even out of food there's a way for me to get help. There's no way to get 'professional' help (loan, etc.) & justify that it's for a dog for most people. I don't qualify for Care Credit or any other loan in the world, as I desperately tried everything humanly possibly when Princess was sick.
It may not be the "smart" choice for everyone, but for me, it's a great idea & God willing I will put a chunk on my account at tax return time.