This is what I was thinking. I don't think I read a response from the OP when "mini trucks"were mentioned previously. The '96-'04 Tacoma is an extremely comfortable and reliable vehicle that was available in a 4door model that's perfect for kids and a dog. Look for one of the 4x4 TRD models with the rear locker, and you'll have a vehicle that will make it to 300k miles or more on general maintenance plus can be a backup if your vehicle or the wife's is in the shop. They'll carry anything a SxS can (and tow a SxS if need be).
Of course if you want to be able to use designated ATV trails this won't work, but many SxS's won't be able to either. I'd love to have an SxS and so would my wife, but I just don't see justification currently since I have a 4runner that is the SUV version of the Tacoma, and it gets me where I want to go, and with a weather-tech cargo area cover I can throw quartered game in the back without worry.