One of my 7th grade students was on the Tank two or three years ago. Cuban and the real estate lady bought in. She's a 9th grader now, and she's made enough money to buy a big horse ranch (at central coast of California prices) and a whole lot more. Cuban still stays in touch and helps her out. The funny thing was, she and her mom weren't going to ask for any money; they just wanted mentoring. The producers didn't realize that until the last minute before the taping, and made them come up with a number to ask for right as they walked in.