Sure, but still at some point it must become profitable for someone.. If btcchina was at $1m/bitcoin and Btc-e was at $100/bitcoin, someone wouldn't take advantage?
Cmon homeboy
But I don't understand why CHINESE people don't do this. You don't need an American partner or a trip to America to open a USD-denominated bank account.
Pretty much every Chinese Bitcoiner should be cashing in on their 50k right now...
i'm sure someone is taking advantage of it,
but it's still china, could become a lot of hassle if you don't have the right connections.