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Primarily, it was the U.S. experiments on cryogenics that would be taking up space in the pod compartments.
RollerBlades, for example, can often be clipped on to the backpack instead of taking up space inside it.
Most pantries are located amidships over the wheels to alleviate balance/weight/control problems, but you still have to pay for the fuel to transport them and liquids take up space you may not have available.