I get between 300-350K from my drive tires and they're only rotated once, when the tread differential is about 2/32s... the rear wear slightly faster than the front. At ~$400/ea (x
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, I don't wanna give the retreader my miles! Steer tires only last between 70-125K, depending on how often they're rebalanced & the truck is aligned. Oh wait, you're asking about cars?
I usually get an alignment twice a year. And a rebalance at the first jitter or shimmy.
IMO, alignment, inflation, balance & shocks are far more important than simply rotating tires, especially on a 4WD. My last 2 4WDs have been 1-ton duallys. the 1st one saw 177,xxx miles on one rear tire set change and 2 steer tire changes. At around 48,000 all six 215/75R16s got changed to 235/75R16s, one load range higher than called for. The "new" p/u has 59,000 miles and has had the original steers replaced when they suffered belt separations at ~22,000 miles. Probably more to do with sittin' for weeks on end and that Texas sun!
My vehicles are serviced about every 12K... None of them see that many in a year, but alignments and wheel balancing is done once a year... unless I'm off-roading heavily... which doesn't happen any more. Bump a curb... and it's into the alignment shop.