It's possible the VI is quieter than the V, even with the same additional venting. But the basic box appears to be made of the same material for both units.
The size of the V's hand turner puzzles me as well. But, the runout acts as a buffer anyway. It's more a question of fluid quantity and application. Too much fluid applied too close to the label would still be a problem on the VI, even with the larger turner, because at some point you have to remove the turner and flip the record to apply suction.
I like audioadvisor in general, but I'm skeptical of some of their practices, particularly their "sale" pricing. Also, their email ads include user endorsements with headshots that look fake, which bothers me. So, I question the actual value gained for the $100/50% price increase with the VI.