Agree with what some others have said. I'd rather pay a little more and buy from another fan who has tickets to offload than let these guys make a buck.
I think the frustrating thing from a lot of people's perspective is seeing these guys (who have zero ties to the schools/games) with a fist full of tickets and refusing to sell them unless they are making an insane profit. As a fan, I would have LOVED to go into the game but cant afford to spend $200-$300 a ticket. So it can certainly make you mad when they would rather toss the ticket in the trash than negotiate a fair price.
Every ISU fan I saw selling tickets were trying to get $200-$300 also. Friday was a brutal market for buyers with ku having the first game and ISU/ku being in the same session. It was frustrating.