Good PV Mods are an excellent example of form following function. i.e., the desired function is defined before the design is started. The form necessary to fulfill the desired function results. Form follows function.
Anyway, I realize the OP is stating a personal opinion. He's certainly entitled to that opinion, even though it was stated erroneously as a flat out fact. I only have one Mod which I'm using. I chose the P18 largely for its aesthetic worth. And there are other mods which I would also describe as attractive. It should go without saying that it's a matter of personal taste. That which appeals to me might be butt ugly to someone else, and vice versa. It is taste, and opinion, not fact.
The OP states: