If I get an animal from a reputable source I do not bother with a fecal unless the animal is showing signs of illness. If the source is questionable I will get one done. I have done 2 fecals in the last 3 years and have over 50 animals. All bets are off if you break quarantine though. If I was taking my animals anywhere I would probably have fecals done periodically.
This is something I was wondering about too. Sorry if I'm hijacking, but since the topic of quarantine came up, have you ever worried about getting mites while traveling with your snakes to the vet?
1.0 Ball Python (Mystic Potion) Tapioca
0.1 Northern Pine Snake - Impa
0.1 Russian Rat Snake (Melanistic) Kallari (RIP)