I decided that since the mummies don't really have any blood to speak of, the Azteks would focus more on people they could sacrifice. The gold artifacts in the tomb are another matter entirely however.
However, I will have to resign myself to being a spectator. My wife got a new expansion for the Sims 3 for the Holidays, and as we only have one computer, she has claimed dibs, so I must stand aside during this forum battle.
But... since I got Lego Lord of the Rings for the Wii, I think I can stand the disappointment. Make sure those Aztecs kick some Archaeologist ass!