So far I've found that it's BETTER to only have the original camera active during the start of the game (first 1-3 weeks). With ONLY the lounge camera you can get MASSIVE viewer numbers and money. Just make sure MAX is in the Lounge as much as possible. With more cameras the money you get seems to be reduced.pro tip : edit your save asap using saveditonline.ru and change every price of every item to 1. That way you can stop worrying about cash without breaking your game.
Try to alsways keep a 50 on you, and as soon as you have let's say 2 cameras put every extra 50 in ads. Buy a new camera every day until it's full, buying new ads every time you can. You'll be drowning in cash fast.
Also make sure you buy the two outfits before eric does.
For myself I would prefer to not need more cameras than the first. Personal thing but I don't want to broadcast everything that happens to the world. Sadly, it seems that we will need the extra cameras to make progress in some areas.
Just a thought.