They are easy to care for, relatively speaking, they are largest of the dart frogs, and I personally think that many of them are just stunning. Some of my favorite morphs are Oyapock, citronella, azureus, cobalt, and powder blue. Look in the FS section as Lisa was selling some.
Auratus usually don't do much for me, they are just black and green for the most part. Tincs on the other had have various shades of blue, yellow, white, and black depending on what morph you have. I have a single azureus.