What Is In the Lining of Jim Boeheim's Suit?

I noticed something strange inside the suit jacket Jim Boeheim wore during the Dayton game. The number 34,616 was sewn inside. Turns out that is the attendance record Syracuse set against Villanova back in 2011. On closer inspection it seems like the entire lining is a huge panoramic of the Dome, presumably from that day.
Pretty cool, but why didn't he get a new one when SU broke that record against Duke?
And why is he wearing a 3-year old suit? Isn't he supposed to wear them once and throw them away?