Why I want a 3D printer?

Everywhere I look I see three dimensional printers. I really want one, but they are still very expensive, but they are getting cheaper. I would try to get one for work, but I can't think of a good reason for needing one.

I like the idea of having a statue made when I retire. Something modest, like the statue of Yuri Gagarin under which I used to eat lunch, the last time I was in Moscow. I could not afford one of those nasty artists to create a sculpture , but now I just to have wait  for three dimensional printer to come down in price. I might not even need to own a printer, I could use an external service.