almost too good to be true;
see the thread titled, "buying evo off craigslist, advice?" or something to that nature. there's questions in that thread which you should ask the seller.
one question not mentioned is--how in the world did he/she get one and why is he/she selling it (for that low?)
it's especially sketch considering the average retail for one here (in nc) is around$ 375-$500 on craigslist.
that's almost too good to be true.
i'd definitely ask for a receipt and good gosh check that ESN before any cash is shown in a public place.
in summary: $150=sketch.