Zullies- banned from export from their native region recently, so basically if you didn't get them while they were cheapish, your gonna have to drop some coin to get your hands on any. i've been offered $900+ a peice on 12"+ zullies. i have yet to see any for sale since there ban. and you can't find them in floridain canals or any feral area.
orino's are cheap. you just have to look in the right place or you'll get charged to much.