Some folks only have an hour, or so, of time to play AO.
But regardless of how much time it takes to earn enough to cover the city rent, the fact of the matter is that FC is raising the cost of city upkeep. How sensible is it really to punish what remains of your dwindling playerbase by making folks work harder to keep what they already have?
As for all this talk about 'making' credits, if you're selling stuff to other players, you're not 'making' credits, you're just shuffling it around. If you want to introduce new credits into the game, you better start selling to the kiosks. Anything else is just more laundering of those tainted, farmer-sourced credz.