You are a caretaker for the state, nothing more. You pay a 30 year fee for the privilege of being a caretaker for the state. After 30 years, that fee is reduced, but you will continue paying that fee as long as you choose to be a caretaker for the state.
At any point, you can decide not to be a caretaker for the state and sell your caretakership to another person. Hopefully, the fees for caretakership will have risen since you bought in, and you will have the chance to make a little money off of it. Of course, if you do, there will be a penalty due the state for selling off your caretakership at a profit.
You can also choose to pass your caretakership on to family. If they choose to take the offer, they, too will pay extremely high fees to continue your original caretakership. If they choose to pass it on to a 3rd party, they will pay fines and penalties for selling the caretakership off, and the new buyer will also pay heavily.
During the course of your tenure as caretaker for the state, you may complete projects and renovations to increase the value of your caretakership. Of course, these improvements will be at personal expense, and must not be done until the state has approved of your plans via various permits and more caretakership fees. The state reserves the right to stop any and all improvements it deems unnecessary.
The truth is, you already own nothing, and you're happy!
Totally sad but totally true!