Texan, I'm a single Mom putting two kids through college. "Financial means"? (You were saying about pot shots?)
There are people who need to haul stuff regularly, as I mentioned in my post. Living in a metropolitan area, however, the majority of hauling that's done around here is kids and shopping. Driving to and from North Florida to visit my son I would take note of the number of underloaded, as you say, SUVs. Anectdotal or experience? That also depends on what you want to defend.
SUVs are classified as trucks and aren't held to the same safety or emmissions standards as cars. Rollovers, lower standards for side impact and bumper strength, headlight height and the resultant glare, heavier vehicles requiring greater stopping distance and the difference in manuverability are issues that effect the safety of all drivers on the road. And they use additional fuel to power all that extra weight.
If so few of the parents on your team attend games that it's down to one or two sets of parents to transport them, vans are safer and more economical. They are, however, not as hip or macho.