Fans go as the team goes. I remember going to a couple games at Petco about 10 years ago when the Tigers were in town and it was a complete orange and blue takeover.
Going back even further, I loved the Murph/Qualcomm. Even though it was a crappy cookie cutter stadium from the late 60’s, nobody ever went and their ushers didn’t care. You could pay for the worst seats and move up to infield box with no issues.