Hi guys, i just wanna ask your opinions about my situation. I am located @ singapore and I saw a very cheap macbook pro retina, the higher end config. here is the ads. the owner is letting go @ 3,000SGD (2,456 USD) according to the website of apple singapore the price is 3,788 SGD (3,102 USD) The owner said, it is sealed and unopened, he also said that it's an import from US and he is just selling it for some commission. I am a bit hesitant because it is so cheap. So I asked him if he has the official receipt, he said he doesn't have it because he used his credit card to buy it. Also, he said that if I am anxious about the authenticity of the product, I can unbox it myself and see for myself, he said I can also test it on the spot if I want to, and even apply the apple warranty. What do you guys think? Any tips?