Most of the same reasons as the other 4 wheel drive owners have mentioned. 4 wheel drive is one of those things that you may never use, but it's nice to have. I would rarely use 4 wheel drive in AZ, but when you have it you find ways to use it. If you go offroad, like me, 4 wheel drive is the only way to go. It's nice when there's snow on the ground and the roads are bad, that you can still make it out if you need to and you have the opportunity to go skiing or enjoy the snow, when most people can't even leave their driveways. Also if you tow a boat it can be a lifesaver. Some boat ramps are so steep and slippery that a 2 wheel drive might not even be able to pull back up the boat ramp after dropping the boat in the water (I know a friend who "floated" his 2 week old, new GMC Jimmy doing just that). 4 wheel drive is a bit of an investment since it costs a couple grand more than a 2 wheel drive, but with added capability, safety, and better resale value, it's worth it.