What is the most you would ever pay for a fish?

$80.00 is insane to pay for a fish no offence, the most I would pay is maybe like 5.00, I can understand if it's imported and costs for shipping and stuff like that or maybe if it was a really rare fish that was totally hard to get. Also be careful of buying fish for expensive like that, know who you are buying from and what kind of health their fish are in, strange that a fish would just die three days after purchasing it, something had to of been wrong with it or maybe the tank was out of junction with it's body? Fish are pretty sensitive to environment changes and maybe it was the water or something.