i found the guy on craigslist, a LFS around here would prolly charge like $80 for one that big. for .5-1" ones are like $45. the guy was selling off a few other large cichlids also
all fish are fragile(except convicts). Every fish if cared for properly won't die!! If your water quality is always taken care of you can't kill a fish. I have kept all "Fragile" fish FW and SW and none of died from being fragile? There is especially no fragile cichlid thats for sure.
ive heard many stories of 1-2 inchers dieing for no apparent reason. a local breeder in town here was breeding them and gave up on them because he was loosing to many before becoming of good size. weak genes i guess. not really sure though as ive never been into jacks or ebjds.