Oklahoma State basketball plays Ouachita Baptist this Thursday, a Division-II program out of Arkansas with an enrollment of about 1,500 students, according to their website. OSU hosts events like this most years, including last season when they did something similar with UCO. That game had 8,638 people in attendance, and Oklahoma State won 76-68.
These events are used as a bit of a showcase for the program and its fans but also add a small amount of ticket revenue to the athletic department budget.
Why not do this exact same thing in wrestling?
College athletics is one big arms race.