It's true but the scale is somewhat different. There's just no reason you should go to purchase tickets and be faced with 25 different "products" for 5 shows, each of them with about 2-3 different price levels within them.

Actually, most bands that play the O2, even the really expensive ones (Stones, Madonna etc...) don't have the prices like this. They've had VIP packages with boats, parking, champagne etc, but they've been the type where you're just sat next to someone who pays 300 pounds less and foregoes the nibbles!