My dad treated us to Legends Seats tickets at Yankee Stadium a couple of months ago. Sweeeeeeeeeeeet. They were about 8 rows behind home plate. We even got all you can eat buffets as part of the package. I don't remember how much the tickets cost, but it was quite a bit.
But just to put this rumor to bed, not all tickets at the entire stadium are ridiculously expensive. Bleacher seats, which for obvious reasons
are my favorite
, cost about ten bucks. Most regular seats, probably about $20.