I had a row of about six or seven Club 85 people in front of me leave their seats midway through the first half - never to return. They just spent the rest of their time watching from inside the suite.
On the one hand I'm annoyed those seats were wasted, but on the other, they had paid their £45 for them so I guess they were theirs to do with as they chose. The money was already in the club's bank account, AND they were spending more at the bar.