I have each box with unbroken ticket books for 2009, 2010, 2011, and 2012. I'm sad I won't have that bit of memorabilia for 2013 and beyond.
I already issues all of the tickets as digital tickets to myself, then email them to people, so this should be a bit easier, but I will miss that thing I looked forward to from the time I was a little kid, and now that I can finally buy my own season tickets, they get rid of paper tickets a few years later.
I'm going to bet they will give you the option to buy souvenir tickets. Hey, it's another revenue opportunity for them.