Old_Dog, I looked at the rigger type belts, none of them seem as stiff as the leather belts, even the nylon belts w the inserts. But I do agree that the near infinite adjust-ability is nice.
I just got a 5.11 tactical leather belt with a stiffener inside. I like it a lot, very stiff, half the price of the beltman belts which I've been looking at. However, I don't expect it to last for more than a few years whereas the beltman ones seem to go for 5 or more years and are thicker too.