a puck could be a good idea, with different specs depending on what your priorities are.
could also mean you could choose to either upgrade your display unit or your compute puck depending on which was holding you back.
I never understood why they insisted in building the battery into the headset, in an inaccessible position rather than in the headstrap (like the Pro) or in a separate puck.
It may be this is in an effort not only to make the headsets lighter but to conform to new EU regs which try to make it easier to change batteries.