canjara has always (except when i first started each and every city had boom and bust by some larger players with retail power "harbers") been the hub of the game for the most part. there is lots of reasons why. some are because larger players (like me and many others) used to build and give (at cost of building) to other newer players to help secure our city (me being 95% invested here).
though for large players there is still reasons to invest into retail in other cities and it should make it easier to gain things like triple city selling awards for products and what not.
though the main reason why Canjara is the way it is... is because players have chosen to invest heavily in it over the hears.
so all in all the city hall issue is just a manifestation of that hard work over the years. there is ways to work around this issue and some of the same tactics could be used to help the other cities by investing in newer players in other cities in ways of retail.
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