They will be available friends, and for a fair price. Stay away from anyone that has a sign "I Need Tickets". Look for fans that are just trying to recoup family and friends not being able to attend. They will be closer to the stadium. The closer to kickoff, the cheaper they get. People get anxious to get inside the stadium. I have never been to any sporting event or concert where I couldn't get a decent seat for face value or less (usually less). Yes, it's a big game, but I have never seen an OSU game that wasn't a buyers market a half hour before kickoff. Have fun, and don't be afraid to walk around holding your fingers in the air indicating you need tickets!