I quite agree with SS. The first way that people judge the bats is on their shape (and stickers)as that is something they can see and feel immediately (some inputs for the mind to process at once and facilitate the decision making). Performance and is something that is not immediately quantifiable.
However, for a bat to pick-up, feel and have the middle positioned ideally, the shape will have to have some bearing on it as well.
The fact remains, that even if the bat ticks all the boxes in terms of pick-up, middle position etc. etc. most of the general public would end up making a decision based on the brand, stickers and shape (mostly due to comparison with peers in clubs or schools)
I think how the bat looks visually may effect the way someone ends up playing with it as it it is not the best looking bat shape abound it will play on your mind and may affect ur game.