Yes. Many more people would show up to see a team like Arizona at home.
Not only would more casual fans show, but a team like Arizona would bring fans of their own like Iowa State did few years back. I enjoyed the ISU series.
IMO, we need to schedule big name teams in lower half of their conference, i.e. Kansas, Iowa State, Texas Tech, Indiana, Illinois, Purdue.
Next 3 years home nonconference schedule: LA Lafayette, New Mexico, Central Arkansas, Arkansas St, Oklahoma St, Wyoming.
Not intriguing whatsoever to the casual fan, except OSU of course. Teams like Zona, Maryland, and GT, as you mentioned, would be a huge upgrade over what we have scheduled. If we're going to schedule from the Sun Belt Conference, only Appalachian State would be intriguing.