Okay, I know that $100 was more money in the late 70's than it is today, but it seemed like a good chunk of the episodes dealt with the trio struggling to come up with $100 each of the rent money. What's that about? To paraphrase Mr. Roper from one episode: 'What the heck are they spending their money on?' I could maybe understand Jack having a slightly tougher time since he probably had to pay for college classes, but none of them owned a car. What were they spending their money on?

The drinks at the Regal Beagle are very, very expensive. And those 3 are there drinking just about every nite.

LOL! Great answer

The rent in California especially near the Beach like Santa Monica causes most people to struggle, its probably not the last $100 that killed them, but its the first 10-15 hundreds that would have killed them back then.

Well actually in the 1st season in the episode where they think they've been robbed they say that they put $300 for the rent money in an envelope.

But yeah the amount of their rent was never consistant.