Platinum tipped spark plugs last 100K.
Other fluids like coolant, power steering, brake, etc. you can come up with your own schedule, depending on how much you are willing to shell out for the longevity of your CX9.
Fan belt probably should be replace at schedule as well (like 60K or 75K).
I do differential fluid on 30K schedule. Transmission on 30K/15K schedule.
I also worry about transfer case oil inside, but need to check with dealer if they do that.