Later, when the city is running normally I have no need for a money cheat. So often I run out of money before I really started, befor something grew. To build up the network first is like cutting a cake into pieces, to give the city parts, quartes/districts, a basic layout. Normally I spent much time, trying out some network layouts, build streets and junktions and rail and so on and bulldoze it and try different connections.
Most of the time I needed a money cheat at the begining.