My take is that if you intend on using the truck for family outings, use a Suburban. If you are of the empty nest, then perhaps a panel truck. One point to note: Panel trucks are just that, a sign panel. Loads of signage space to advertise your business. Perhaps a tax write off? Or, sure, if you have a fishing, hunting, or other outdoor/indoor activity I guess you could have signage on the Suburban as well.
Your choice,
Dale