Viruses are for people who act foolishly on the internet. Never owned an anti-virus and don't need to. I just use firefox/chrome and a firewall. Add a brain and common sense into that mixture and you've got the perfect solution to viruses. 1000 times more effective than any anti-virus guaranteed.
Although the white MB looked cheap, I assure you it was pretty sturdy considering i've dropped it off my bed a few times