I work for BTC.pt. I can tell you the reason for that price.
We sold a lot of Bitcoins in the last week, especially yesterday with the price drop, and our credit with our sellers got depleted, so, they will only resume business with us when our transfers to them get cleared. There is only one seller left on our pool of sellers, and €1000/BTC is his price. We hope to have everything back to normal before the weekend.
BTW, the Bitcoin new All Time High is €1000/BTC. We did really sell some at that price.
Oh, and I'm not the owner. I work for the company who owns BTC.pt. I'm just the tech dude.