Thank you for all your replies... I'm pretty sure it will work for us. I drive a Grand Cherokee now, but with more grandchildren and more junk.. well you get the picture.
I have no garage issues, I built mine 26' sq with an 18' door on it. We plan on getting a SWB 4WD Denali diesel, Fuel economy is one of the things that attracts me to the lineup as we drive 3-400 miles at least once a month to visit my daughter and 25-3000 miles roundtrip in the winter to FL. I have spent many years with diesels and know their quirks, not afraid at all of the Duramax... We think it will be the perfect road vehicle. Our main issue is daily driving (and parking..) to stores and shopping/dining, but I plan to park as far away as necessary to stay out of the fray.
As one person mentioned above, ya , Chicago type trips are pretty scary, especially if you want to park down town. We used to take yearly trips there, but that landscape has now changed and we don't see that happening anytime in the near future. We also could drive a smaller vehicle (her vehicle..)to tight urban areas.... I'm also in the camp of the above poster of you can't really have enough metal around you, and big does = safety in my book. We used to have a late 90's Tahoe years ago, and I still miss that expansive space inside.
It would be interesting to hear what wives think about driving it, as at times we HAVE to switch vehicles for various reasons. This whole thread was prompted by my wife saying "But is this vehicle TOO big for us?" Once they get an idea in their heads, sometime its hard to dispel it !