The Potters is my oldest leopard in my tank @ 4 years now. I had a african leopard for 4 years (second picture above, which was my first leopard) but it caught some disease from another fish I added and didn't make it, but I replaced it when it died. The rest I have had for over 2 years now. My other wrasses include a china wrasse (2+ years), and my oldest fish now, my yellow wrasse I have had for 10 years.
Not exactly "rare" but I have a pair of potters leopard wrasses which isn't to common. I had a black leopard as well but he jumped a couple days before I was going to build tops "incase" although I never had an issue for nearly 3 years with jumping. If leopards didn't come in DOA so often I would have a regular, 3 bipartius and 2 blacks also.... but someday