But why an SUV at all? Do you off-road? Even if you do, the vast majority are no longer designed for off-roading anyway (including the GL and Explorer). Need for all-wheel drive for inclement weather? There are plenty of more efficient sedan and wagon options. Do you need the extra room and capacity? Then a wagon or minivan would have made more sense. Looking for comfort? A sedan would have been at least as comfortable, with better ride quality. Obviously, fuel economy, performance or driving dynamics were not priorities, as there really can be no worse choice than an SUV in those regards.
I can almost guarantee the only reason you or anybody ultimate buys a luxury SUV, like the GL, is image. Even leadership at companies like BMW, Porsche, etc., have bemoaned the fact they have to build so many SUVs, as they could make better cars if not for mainstream demand for them.