Kind of ironic the SFO run, the shortest of the three legs, morphs from EM120's a few years ago to mainline while they still run the torture tubes to DEN. Getting away from the EM's and 200's was the main reason I left UA after a couple decades flying them exclusively. Closing MOD didn't help.
Anyway, cool. Remember getting blasted by the old 732's as a kid when the 'gates' were just a covered walkway and a great place to smell burnt jet fuel. Nice to see them back.