You could credit CX to Asiamiles and earn 10K+ points. Even if you never credit anything else to Asiamiles again, that is enough points for a Samsonite Penguin carryon (actually shaped like a penguin!) -- now who can resist that as a memento of this trip. Asiamiles is moderately good for some things, like upgrades on BA/CX (ie things you cannot use AA miles for). So it isn't quite like having orphan miles, and 10K Asiamiles seems much better value than 1.5K AA miles.