Here's the thing some cars are designed to be useful for 3-6 years. So if you buy a car which is designed to only be good for a limited period of time than if it has over 100k miles it is not worth the effort. At the same time there are some vehicles out there which are designed for professional use which can go 500k with out much issue.
If you were looking at a real jeep (CJ5/CJ7/YJ, TJ, TJ LWB (LJ) and JK models "Wranglers") and not the 4 door SUV I would say 200k isn't bad but I would do a full rebuild on the motor and drive train. The reason being they are classic vehicles and have actual value. The Jeep SUVs however are not worth much. and are really disposable vehicles.
I personally have a 1996 Lincoln Towncar it is a professional Short Wheelbase limousine designed to do 500k+ miles so having one with 150k is fine.