10 year old me: MOM! I want a PS!

My mom: That's too expensive sweety. Mom can't buy it.

Me: But I NEED it!

Mom: Fine, but I'll buy it next year with YOUR money from your birthday and this Christmas gifts ok?

Me: Ok!

*1 year later*

Mom: Wow, the NEW Wii is 100$ off!

Me: I want a PS.

Mom: Are you sure?

Me: PS.

Mom: But the PS is 100$ more expensive and you'd have to wait until your birthday to receave it.

Me: I don't mind.

Mom: *buys Wii*