There's only a few valid and logical conclusions I can draw from this.
1. The system had scratches already. If that's the case, it's your responsibility to notice them, and you have every right to take it back to wherever you got it and exchange it for another one. Damaged aesthetics is certainly a valid reason to return something.
2. You did the scractches yourself. If that's the case, blame yourself, and stfu.
Making some illogical statement like "oh I'll never buy consoles again," is just that - illogical, and this is why people are saying you sound like a loon. To prove this, similar statements could be made from other situations, such as "This apple has a sticker on it, so I will not eat it or ever buy apples again," or "This banana's peel has a black speck on it, I will never buy bananas again," or "My car got dirt on it, I will never use a car again," or "My car got scratched, fu Ford/Chevrolet/etc"....
I could go on and on. Point being is that they all share the same idea - they're all crazy remarks. Your claim and problem with a few minor scratches is valid, but saying "OMG I WILL NEVER BUY VIDEO GAMES AGAIN EVAR" is not. Maybe if your system didn't work and it blew up after you started it and set your house on fire and aliens landed and destroyed half the Earth and then all the volcanoes erupted and a giant beetle appeared from nowhere and rampaged havoc in LA while Rosie O Donnel assumed command as dictator of the Earth...
...then you might have a point.
I actually went and looked at my GC to see if it had scratches, and to my surprise it had a few, but unless you look really closely and are intent on finding such flaws, you'll never notice them. You're going to have to show me some sort of super plastic and/or coating at some point then. A towel? Are you kidding me? Did it have retractable claws and/or spikes and/or acid spores? If so, please send me such towel, I will use it to claim my dominance at the local arcade, wherein my minions will then carry out acts of indescribable evil for me, such as loosening all the salt shakers in all the restaurants in the city, because otherwise they will have to answer to...THE TOWEL.
-Strell