I have an Expedition. I cringe now with what I spend to fill it, but its no thing. I also have a Taurus. No cringing there. Thats also the daily driver. However, its great to have a vehicle with 4WD for inclement weather, to have a vehicle with room to haul stuff from Home Depot (My table saw would not have fit in the car, let alone the sheets of wood), its great to have something that can tow a trailer when needed (Such as when we moved intot he house) its great to have a vehicle that I can fit me, the wife, 3 kids and all our luggage in when we go on vacation and still be comfortable, its great to have a vehicle I can go off roading in (Such as to the beach, camping, hunting and fishing).
A SUV isnt really practical for day to day use, I will agree with that. But the benefits FAR outweigh the expenses (A bit mroe in gas) for me. So, I have one, and have no intention of getting rid of it ANY time soon.
I also forgot to add, its great on those "alone" nights when me n the wife are out. Yes, we still park once in a while. Yes, theres all KINDS of room in an Expedition to just get straight freak NASTAY!