Tough call.
For me, I'm the other way around. In the middle east but getting fed up of it, if someone offered me DEC command on an Embraer I'd bite their arm off....maybe that says a lot about the place?
If your driven by the desire to drive a bigger jet then go for it, I've driven the bigger stuff and it's just another aeroplane at the end of the day, goes further, carries more people, takes you away from your home/family for longer....the grass is no greener.
Good Luck!