T Shirt History

As part of a wee project doing up our bedroom, I tidied up my wardrobe.  I have quite a few T Shirts going back a number of years.  Most are of rock concerts.
The blipped one came from the Art Gallery in Milwaukie where I was attending a conference.  My 50th birthday fell on one of the days of the conference.  I delivered my paper early and then gave myself the rest of the day off in recognition of my special day.  I made my way to the gallery, walked in to the shop where I saw this T Shirt.  And it was much reduced.  It just had to be bought and it was.  As a 50th birthday present to myself.
It is now over 16 years old.  Should it stay or should it go?