Enough can be a deliberate stopping point
There is a kind of freedom in deciding what enough looks like before another option arrives to move the finish line. A shelf that holds the books you actually read can serve you better than a larger shelf bought only because the smaller one has finally become full.
Go deeper
Give enough a shape
Enough becomes difficult to recognize when it means whatever comes after the next addition. A larger collection creates a reason for larger storage, which creates room for a larger collection.
A stopping point can be chosen around use. For a reading corner, that might mean one comfortable chair, a working lamp and space for the books currently in rotation. These details make enough observable rather than abstract.
Ask what the thing is supposed to let you do. Then describe the point at which it does that job well.
- A bag holds what you need for the day.
- A room has enough seating for the people who regularly use it.
- A set of tools handles the repairs you actually make.
An extra option may still be welcome. It simply has to offer a reason beyond being available.