I confess that, under those conditions, I might be tempted too. The first is specific to this type of item. The others are helpful for any purchase, but may be more important when the item is frequently scammed.
I once considered going for what would have been an incredible bargain at the "Buy it now" price on what was then a state-of-the-art laptop. One of the clues not to was that the seller would only take payment by Western Union. (There were others, including posts about a nearly identical scam in computer-related Intenet discussion groups.) I stayed away. Ended up buying a smaller system for what would have been more money if the offer was legit, might have missed something really good, but at least I got what I paid for.
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If you're going to put something in all caps, make sure the words you're emphasizing are spelled right. "A lot" is two words. More on this in Omni.
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