Ryan,
I've had two Land Rovers, a '95 Discovery and a 2000 Range Rover HSE 4.6, which I still own. In both cases, serious issues arose between 75,000 and 100,000 miles, especially on the RR having to do with the air suspension. After replacing several wheel bladders and various components, I took the entire system out and installed coils and shocks. I'm not a serious off-road driver, so from my perspective as a dedicated RR owner, it's the best thing I've done to the vehicle. Problems arise in systems that are, in my opionion, too sophisticated for their own good -- the air suspension system and the alarm system. I've had trouble with both. Land Rover won awards for engineering, etc., but these systems, for everyone except the most dedicated off-roader, are too complicated. The other annoying issue has to do with the emissions faults. They are expensive to fix and if you're in a state with emissions inspections, you won't pass if the Check Engine Soon light is on. Owning a Land Rover is a bad habit, but I wouldn't give up my RR for anything. When the end days come, two things will survive, cockroaches and Land Rovers.