Well, I own a 2002 that I bought online at the end of '07. It's got nearly 8" of ground clearance but the running boards make it look like it sits lower. I've driven mine on some light 4x4 roads in the Sawtooth NRA and places like the Monument Valley road the Navajos run. As long as it's dry, no worries.
Just got back a couple weeks ago from a nine day trip through Southern Utah and Northern Arizona with my 10 and 12 year old boys. Tight fit but worked fine. It's a great rig and with the 5.4 gets decent MPG if you don't have a lead foot. We saw lows of 11 climbing against headwinds in the higher elevations and highs of 20 when cruising with a tailwind on the freeways. Overall MPG on this 2000 mile romp was a hair over 17 MPG.
I *was* looking at buying a Sportsmobile when someone at rv.net alerted me to this particular rig with 44k miles at the time. I bought it for $16.8 ( a steal of a deal) but had to pay to get it here from the Carolinas as well as local sales tax. Still, I'm into it for under $20k. Do I wish it was a proper 4x4? Oh yeah but I also own a Lexus Land Cruiser so if I need 4x4, I take that rig and travel a bit more primitively.
Here's a photo of mine with the top up. This is in the SNRA in Idaho:
This is also in the SNRA off of one of those light 4x4 roads this rig can traverse if the weather's dry:
And here's a photo in Monument Valley a couple weeks ago: