[Licensed to kill]

My answer to that would be "because I'm only interested in pleasing myself, not trying to impress others and these cars please me". No different that those that feel the need to give their unsolicited negative opinion about people that hotrod their cars, or add options to a car that didn't come with them, or use non original colours, 16" wheels or whatever. It's OK to not LIKE what someone else has but it is in poor taste to say so unless you are specifically asked.