Nothing is really "sold-out" anywhere. You can call a Marriott Hotel and get a room even if there is "no vacancy " if you are a platinum member (75+ nights stayed per year), Derek Jeter can probably eat at any restaurant in New York without reservations. There are seats for every NFL team laying around somewhere. They may be scattered single seats, player returns, OV etc, but they are around. Be persistent and something will turn up.