Objects are only worth what people would pay for them - rarity is only one factor. Bitcoin forks are even less compelling as anyone can make them at any time -

Objects are only worth what people would pay for them - rarity is only one factor. Bitcoin forks are even less compelling as anyone can make them at any time - there is an infinite number of them. So the actual supply isn't 21,000 of your bitcoin, it's all the possibly forked version of bitcoins. Some of those may gain popularity, but I have no idea why you think yours would be.