Keep in mind there are 2 Yankee Stadium seats, 1 from the original Stadium that closed in 1973.
And the other from the refurbished stadium that opened in '76 and closed last year.
The recent seats can be had from Steiner Sports and they aren't a heckuvalot cheaper then the original stadium seats.
The first stadium seats have wood slats, while the refursbished stadium seats have plastic bottoms & backs.
Here's a shot of my seat that I sold to a friend (& N54'er) last November. Going rate is about $1500-$2000.
Ironically I picked up a pair of Tiger Stadium seats (plastic back & bottom)
dlvd for just $150 last year as well