I Don't Get It #2: Luxury SUV's and Trucks

Luxury.
Sport Utility Vehicles.
Did I miss something here?
I thought trucks and SUV's were supposed to be rugged. Why would you buy an uber expensive truck that you wouldn't dream of taking off road? It is a stupid trend, and I am glad that it is dying. I guess they are now making hybrid SUV's. Uhhh good on you for going green, but doesn't a weaksauce hybrid engine defeat the whole purpose of owning a large vehicle? I don't pretend to know much about cars, but I do know about economy, and detecting shameless excess. Buying cars is a bad investment. Buying expensive cars is a worse investment. Buying expensive luxury SUV's and trucks is just plain stupid.