I'm very new to owning a Trailblazer, so I can not speak autoritatively, but will reply anyway to give your thread a bump.
Of course buying lower miles to the extent that you can always makes sense. That inline 6 might not hit the wall, but other components might be on a downward trajectory by the time you hit 80K, depending on how the vehicle was driven and maintained. Apart from consumables like brakes, I'd consider hte possibility that improperly driven or maintained elements on the tramsmission and transfer box might be iffy, and elecrical problems could pop up. I'd budget almost as much to buy and maintain a vehicle at 80K as I would to just buy a vehicle at 20K.
Check out Consumer Reports ... they have a Trailblazer in their stories of vehicles at VERY HIGH MILES. I had hard stories of 200k being perfectly doable, and that is one of the things that drew me to this model.
Of course buying lower miles to the extent that you can always makes sense. That inline 6 might not hit the wall, but other components might be on a downward trajectory by the time you hit 80K, depending on how the vehicle was driven and maintained. Apart from consumables like brakes, I'd consider hte possibility that improperly driven or maintained elements on the tramsmission and transfer box might be iffy, and elecrical problems could pop up. I'd budget almost as much to buy and maintain a vehicle at 80K as I would to just buy a vehicle at 20K.
Check out Consumer Reports ... they have a Trailblazer in their stories of vehicles at VERY HIGH MILES. I had hard stories of 200k being perfectly doable, and that is one of the things that drew me to this model.