Some skepticism here... After all, one of the good points about these units is that they require no mechanical input other than modest body leverage. Putting power on it has the potential to increase cost, plus give us all one more thing to maintain and/or replace.
That said, I'm a (relatively) fit 36 year-old. I understand that someone who is limited in their physical movement might wish for assistance.
Perhaps this should be an extra-cost option, and easily disconnected (like, pull a pin or something) so that if it fails one can simply raise the shells normally, as if the motor weren't there at all.
FWIW...
Steve
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