I've wondered that myself as typically LR's depreciate like a rock. My opinion is pretty much the same as the others have already said; these vehicles are simply very scarce in the states and I believe they've gotten a well-earned rep for truly go-anywhere-in-the-world stamina
Make sure you're happy with your mechanic though, I've loved the looks of LR's for a while, but their reliability and build quality has never been a strong point, especially for the price you pay