Yeah, I'd considered that, too. I could throw a small motor with an eccentric weight on the thing that'd do the job easy-peasy.
However, one of the big drawbacks is if you get too much of an angle to the platen, especially in two axes, the force of pushing on the levers can start making the thing skid across the bench.
So now you're looking at having to clamp it down, add controls for the vibrator, run the stapler handles at awkward angles, etc.
Really, this quick-and-dirty setup worked incredibly well this afternoon, and I was able, with minimal care, to get nearly perfectly-straight backs to each bundle, which resulted in more solid and consistent binding strip application. I'm very happy with the current quality of the setup right now- barring some artist's-eye nitpicks, the new books are as good, if not in some cases better, than the old "pro shop" product.