Is it fate? Is it my destiny?

Don't remember from which year!  Whatever I want to buy, that product must be "the last one"!  At the beginning I hadn't any attention on it, however, time by time, so strange for everything I want to own it in my life, it would be the last one.  Now a few companions discovered this condition on me too!!  Is it fate?  Is it my destiny?  Maybe I can pleasant to say that I can own everything I like even that is the last one.  However, I know one thing I cannot own in my life, that is...........