Dubai's good too.

Location doesn't concern me all that much, just as long as the host city as reasonably good public transport.

I'm not sure about the splitting up. At the moment, the PASS US Summit can be called 'The biggest SQL Server conference'. If it gets divided into 2 or 3 smaller regional conferences, I worry that the value of those conferences will be reduced. Most people will only be able to make one of the smaller conferences.

This is why I travel to the US conference rather than the European, even though the European conference is closer and cheaper.