I'm just gonna preface this by saying I LOVE the sims. However, this gameplay is very poorly thought out. Each level you unlock new things to be added which is great, but I build up my city to 20k and then you decide to introduce a new thing like healthcare which needs to cover all citizens so suddenly i have to move everything around to fit in hospitals and I don't have enough money to buy them but if I don't people start moving out. It makes it very hard to accumulate simoleons or progress.