The crucial distinction is this: do you appreciate the rare object for its own attributes, or do you appreciate the rare object because <i>you</i> have it and other people do not?<p>If you loved the plants (or crystals, or antiques, or anything else) for their own sake, reducing scarcity would not harm your appreciation and enjoyment. If your goal is having what others cannot, the collection might as well just be numbers in a bank account: a proxy for power.