I have kept individuals for many years in the past, I have collected them by hand nets and they seem to do well if they start eating. My experiences is that success has to do more with how they were collected and handled before ever reaching a wholesaler or retail store then anything else. ....
Still, as awareness of the problems become known more and more are being collected and cared for better and the success rates will grow to the point where it will be a good choice for aquariums with some experienced aquarists.