I expected at least one other person, on here, to have personal experiance with keeping them...but I guess not.
As someone else said...they're NOT for 99.9% of reptile keepers. Doesn't matter if you "like a challenge", think you're up to it and want one, for the hell of it.
They are not the mean, vicious, aggressive monitors that people make them out to be. Have there been instances where they've ambushed and attacked keepers?...sure. But, the majority of those instances were in zoo habitats, where the specimens were rarely interacted with and were wild caught ADULTS.
There are people out there, who have hatched CB Crocs and I wouldn't hesitate to get another one and will...when I have the space I used to have. If interacted with, from a young age, they become quite tolerable and managable. They are NEVER tame, by any means and if you mistake tolerable for tame, you're going to lose some fingers (if not worse).
They are very tempermental and if you do not know the limits of your individual animals and know when to back off, you're gonna be screwed.
My advice...do some more research and spend at least 6 months, studying them however you can. This is not an animal where they're as available as Beardies. These are very limited and the more people buy, the more are taken from the wild. There's no point in aquiring one if you simply THINK you can maintain it...you'll fail. Not a personal jab, at you...but if you think this something you can just get on a whim and think it'll be smooth sailing, you're badly mistaken.
They learn, the adapt and they're INCREDIBLY smart. My 8' male Croc escaped from his enclosure one time. Made his way to the main level of my house and found a bedroom window, that had a fan in it. He pushed the fan out of the window and was less than 4' from escape (into my neighbors yard) before I wrestled him under a blanket and carried him back to his 15' x 12' x 9' basement enclosure. 4 months later, I let him out of his enclosure and he wandered upstairs. 4 months without being out of his enclosure, without being on the main level of the house, etc...and he went STRAIGHT back to that same window, knowing he'd almost gotten out there.
If you're anything like the majority of people on forums, you're not going to listen to a single bit of the message, but I really hope you do. These aren't Ackies or Dumerils or Iguanas. They require an insane amount of care and make no mistake...they are potentially deadly. Please take your time, use caution and common sense.
Here are some pics of my guy: