Shipping is from Egypt, and I'm not asking for 500$, i'm asking for 350$ by .5 bitcoin
the one on butterfly labs is 10 gh for 374 $, if we divide it get the real price for 6.5 gh/s, it will be about 250 dollar = .35 btc
the one who asking for .25 btc, make it high to .35 and it will be a good deal