For future upgrades I think it could be good to make better use of money.
At present, the only time money is an issue is when buying properties. Even then, it is rare that money is an issue, as it is accumulated so quickly. The money is largely irrelevant to the game as it is - especially once all the properties are purchased.
Currently, when faced with a "money option" e.g do an action or pay $500 to avoid it, or buy a piece of clothing off your partner etc, it does not matter whether you have the money or not. You can simply develop a negative money balance. OK, pretty much like real life I suppose, using credit, but it doesn't add to the game IMHO !
There is no real incentive to accumulate/keep money.
Simply preventing a negative money balance, thereby forcing players to do actions instead of money options when there are insufficient funds, I think could help.
Also to slow the rate of accumulation or add some additional "costs" . The "decline" option could always be associated with a cost for example.
Anyone else think the same?