Trolley of airplane wheel and caster

Trolley Case aircraft wheel is also a caster, in fact, this is the name of the surface of a trolley wheel shape, does not mean that the material! (Note: Some people call the universal wheel for the Vientiane round, one-way wheel Directional wheel)
Aircraft wheel and universal wheel price comparison:
Under normal circumstances the aircraft wheels are used mute rubber wheel , so basically are silent, the size of the aircraft wheel changes little, basically bigger than the universal wheel or with the universal wheel about the same.
The caster is the so-called movable casters, its structure allows the level of 360-degree rotation. Caster using a variety of materials, including mute rubber wheel, the same specifications of the aircraft wheel caster material than expected, because an aircraft wheel with two side material, so the general aircraft wheel will be more expensive than the caster, The overall aircraft trolley case will be more expensive than the trolley case.
Trolley Case wheel and caster which is better? This depends on personal preferences, some people think the caster is good, some people think the aircraft is good.