90% of my collection was bought online based on pictures from the breeders that were selling them.

I have never had any issue with any of those animals, at this point unless local sale I also sell the majority of my animals, never had any issue either.

Because of the way they are packaged snakes go through very little stress, like with everything else you need to make sure you are buying from someone knowledgeable and reputable and one of the good way to do so is by doing your homework prior to buy from someone, check their reputation, ask around if people have done business with the person you chose to buy etc.