That's a tuff one to answer as it all depends on the individual (or in the case of the premium/executive seats on the company hat's bought them. When Woolwich first opened the airline stadium they had thousands of empty seats on show, remember the black bin liners protests. This was because those that purchased the seats would only bother to turn up to the Cat A games, they had zero interest in a game against Hull, Cardiff or Huddersfield etc...I agree but I wouldn't have thought the stadium will have many empty seats for a long time.
I can easily see this repeated at the new stadium, unfortunately. It's what happens when the "event" is more important than the game, when people go because they have one employee of the month and this is their prize or they just want to been seen at the "must attend" fixture. It's not just football, but Tennis, Motor Racing, Horse Racing, Rugby and Boxing are easily the worst offenders.
I saw this posted at the weekend from the Rugby, these people aren't Rugby fans, let alone England fans, no fan of anything chooses not to watch the game they have paid to see. (just look at that abomination section behind the dugouts, most people sat their only see 30mins of the game at best).
This is Man City's tunnel club from the weekend!