1 They look crazy and people may think about them "yuk, those horrible glasses, how can she/he wear them?!"
2 When people glance at you and think whatever they think (see no. 1) you can think for yourself "tee-hee, I have this super cool glasses - and you not!"
3 It is much more beautiful to see the world trough may five mm thick glasses-fringe.
4 Because they look: cool, strong, unbreakable, massive, confident - just like yourself should be.
5 Because they are going to feel like home relaxing on my nose and getting a nice suntan.