What kind of tires are you running that go 200,000 to 300,000. Semi truck tires can go longer than most car tires, but even they only last around 100,000 miles.
I try to be gentle on my vehicle, but I don't get anywhere close to 100,000 miles out of a set of tires. I will likely get over 100,000 miles on my front brakes though. My rear brakes had to be replaced at 85,000 miles only because a caliper locked up.