A number of the most amazing looking speakers left me with indelible scars of their sound...
Well said, loudspeakers are to be heard. When looks are priority, sound quality recedes to the shadows. Any serious lisening session should be done with eyes closed anyway... if eyes are open when listening to music, you are barely engaging your eras & brains, you are missing out 90% of what the speakers can translate.
Also, keeping eyes open forces the brain to skew interpretation of the sound to fit what you see...
All that being said, the most beautiful speakers are the ones made from real wood cabinets. To me, nothing else comes close to their natural beauty, simplicity and honesty.