I am interested in a highlander hybrid. I am going to drive it to work, a 20-minute city drive, and may take it to Tahoe once a year with my families w/o heavy load. Does AWD make sense or simply just a 2WD would do? The price difffernce a dealer quotes me is about $1300 more for a AWD. I am wondering which would make more sense to me? Does AWD cost much more in maintaining the car? and if I don't swift it to AWD often, would it cause some "damage" to it?