One of the things that some people look at when going to the vet is how much is the animal worth and how much will the bill cost. If the animal is a $10 garter snake and the vet bill will be $100 for a check up then most people would look at that person as crazy for bringing that garter in.
Me, I spent more $$ for the vet on a $40 normal house snake then my pastel 60% ghost BP which was valued at about $600 at the time I purchased it.
I definitely will spend the money if I have it for a "pet".