I do the same, I buy 2 each year, 1 for the day I come back home and the other waits a year before I put it on the day I come back to Atlanta for the next PP.
Didn't they do a dark blue shirt a few years back though? I'm thinking more along the lines of a light blue (similar to that one off that was brought up earlier in the thread)
Have to agree with the general sentiment here. A blue shirt would be great for next year! I also like the idea of a steel blue or lighter blue shirt like some folks have mentioned, since there was already a dark blue ProgPower shirt for ProgPower XI.