I got tix to Sparty game last year for about $60 apiece 3 hours before game time right outside the stadium. 50 yard line, 25 rows up. Granted it was cold, just lost to Purdue, and 3-6 at the time.
Back in 90s my wife was looking for tickets for her and her friend for a noncon. She asked how much, he said $10, so she gave him a $10 and took the two tickets.