Looks matter plain and simple how much varies to each person.
Think of it like a car, there a people out there that don't care what kind of car they have as long as it works, and some that only care about how good or fancy a car is the mileage, history or problems under the hood don't matter as long as it looks good.
And then there are those that are all about what makes a car really run smooth, the engine, horse power etc etc...
It's the same way with people, the vast majority want something that looks good to them 1st.
For most your not going to test drive something unless you like the way it looks 1st
And just like with cars eventually looks fade and no matter how much you keep a car up its going to get old.