I really don't understand how these service costs get so high.
When I get service on my car, whether it's the FX or any other car I've owned, I look at the maintenance schedule.
http://www.infinitihelp.com/Infiniti/Maintenance/FX/30.htm
Instead of saying, "Give me the 15k service" you say "Change my oil/filter, air filter, rotate my tires and change my in-cabin filter." I assume once they do an oil change, they inspect all the inspectables anyhow. -- They want to find something amiss, so they can tell you about it and make money fixing it.
While most of the time, package deals are a bargain (You save money on the Big Mac meal versus buying the coke and fries separately) it would appear that package deals at dealerships are rarely a bargain.
Of course, perhaps the 15k package service has them doing some extra things. The question is, what are those extra things, are they necessary/bogus, and if so, why aren't they listed on the maintenance schedule as something that needs doing?