I'd buy an emptied 1BTC coin for 0.05BTC, but I'm not touching a full one. They seem a bit unsafe.
Personaly i would say that these coins are indeed SAFE. Except if the seal is missing/broken or casascius himself has saved the private keys of the coins he sends out. I highly doubt that casascius would "steal" his customers for 0.5/1 or other coins. He has some reputation
