Looks like one of the reason the Landmark 365 costs more money is they are using 8k axles and 17.5 inch Goodyear tires. They put more money into some of the suspension components but some how forgot to upgrade the hangers, bolts and the small stuff. From what I see the Landmark is a Big Horn with equipment that is optional on the Big Horn. In other words it is a mid point trailer trying to imitate a high end trailer.
I think if one wants a high end trailer they should look else where and get a real high end trailer. As the saying goes "you can't polish a turd"