Yep, I was asked just the other day about keeping anti-venom on hand for some of the hots I kept. I checked around and was fortunate enough to know that the hospital only a few miles from my resident had all of the species I kept on hand (Mainly just the generic since none were exotics or neuro). It can be VERY expensive to keep anti-venom on hand, especially for species like King Cobra when the Anti-venom itself is not produced in the US, so you have to import it from places like indonesia.
I have only had one scare with a Crot, and it was during a milking. The snake managed to get one fang off the milking platform and stop JUST shy of my thumb. Didn't stop me from finishing though and hasn't stopped me from obtaining samples as needed :)