The same reason you want things that you are told that you cannot have.
I really don't know. Buying new toys is like a drug. It is addicting and helps to fill a void created by frustration (at least for me).
...and HEY... need has nothing to do with it, if you
WANT it.
Life is short. If you want it ... GET IT.
Get everything you want before you reach the point in life where realism and cynicism kill creativity.
J