The (TV) Monkees are rich kids living off of trust funds
- They are "broke musicians" yet own a heavily customized GTO, wear tailored suits, and live on Malibu Beach, but they still can't afford to pay rent or get their "big break".
- And considering that Michael Nesmith's real life mother amassed a fortune after inventing liquid paper, it could be that in the show the car is his and that his mom bails them out after they fail to find a way to pay the rent, hence why the status quo is preserved, even after their landlord tells them that he is definitely kicking them out this time (In "Monkee Mother" he said that he grew up in poverty and with a large family but it's possible that this could've taken place after Mike grew up).
The (TV) Monkees sold the organ they inherited in "Monkee See, Monkee Die"
- They used the money from that to pay what they owed to their cranky landlord, Mr. Babbitt. Hence closing that plot thread left open and unaddressed (they're obviously not homeless in the next episode).
