Most Helpful Guy
I know some guys that feel strongly about that. It's good to look your best when you go out regardless, because you're presenting yourself to the world.
But you could be in sweatpants with a stained wifebeater on when you're inside, I couldn't care less. At the same time, depending on the occasion, I might be embarrassed to take someone out that dressed inappropriately.
To me, clean is more important than fancy, and proper more important than brands.
If someone always needs to have the latest fashion clothes, I find that kind of pathetic. It would be a turnoff.