More craziness.
Just received a first-class buy-up offer for two segments, Norfolk to New York–LGA and LGA to Detroit. No bundling available
ORF–LGA was $359.05 and LGA–DTW was $584.80 for a total of $943.85. Mind you, ORF–LGA is on a CRJ-900 and LGA–DTW is on an A320. Neither has meal service. Both flights are 90 minutes or less in duration.
As a point of reference, I paid $570.20 for my round-trip DTW–ORF–LGA–DTW ticket. DTW–ORF was in X and ORF–LGA–DTW was in U.
Booking the exact same flights in paid first-class for the entire round-trip is presently $674 or $840.05 cheaper than the first-class buy-up.