And I'm at the opposite end in about a month. I'll be in 80K at the end of May going DTW-NRT. I had the same thought - it might be my final trip on a DL 744, and I'm taking the upper deck. The return is via ATL on the 772.
Quasi-related, do we know yet when the final 744 flight is? I seem to recall it being in December 2017, but I don't remember the exact date or to what city is the final customer-bookable leg. Would love to be on it if possible!