Well vet care is different for snakes especially though. Even snakes from the worst conditions can usually be brought up to tip top shape without ever seeing a vet. Although of course this doesn't mean no vet care.
As for hoarding another issue I have noticed is new people to the hobby....they go out and buy say 20 snakes within 6 months. That's fine and dandy for the first year since they are all very small, eat little and are easy to house and manage....but few realize what taking care of 20 ADULT snakes will be like. And you can't explain it, you must experience it.
In general unless you have money or substantial income for vet trips, and ANY emeergencies you should only own as many animals as you would be able to take to the vet on the drop of a dime.