Thank you.
I really hate mites, but given what I paid for her and that I knew in advance it doesn't seem like a big deal. I wouldn't really call her unhealthy either. She has mites, it's not like she has 10 layers of stuck shed, severely under weight and has an RI like some craigslist pickups are. Her previous owner seemed to genuinely care for his collection but he had to let them go because of a short notice move and his new place wouldn't let him have the snakes.
Honestly you run the risk of snake mites with every new addition you pick up. The last time I had to treat for mites was in QT rack and they came in from a snake that I got from a highly reputable breeder. It was a nightmare treating the 8 snakes in my QT rack and what made it worse was the snake that brought them in was only in my possession for less than 36 hours because I sent her back for a refund because she had a major kink that wasn't obvious in the breeders photos of her and they didn't disclose that information before hand. I would much rather know in advance that a snake will be coming in with mites than end up with mites in a QT collection because the "healthy" snake a breeder sent me had them.
Thank you.
You are right, treating one snake isn't that bad. I plan to do at least one more treatment to be sure because having one survive and infesting my collection when I move her out of QT would suck. One snake isn't bad, but 30+ would be pretty horrible. >_<