It seems like a benefit that's more for the handler then the animal. I've seen some places keep venomoids as part of their educational display but it was more as a precaution for just in case god forbid something happens and the snake got loose/got out, but they were still treated as if they were hot animals and not handled around the public (and it wasn't advertised that they weren't hot). On an individual basis... idk. I don't really agree with it :/ If you want to keep hots, keep hots. Don't take away their natural defenses so you feel safer, if you need to do that... might not be the best idea to have them to begin with.