When I originally got my Raspberry Pi, I wanted to build a Magic Mirror with it, but after looking at the many different projects people have done, I am reconsidering what project to do.
The Retro Pi project is very appealing to me, as I am an avid gamer. The Arcade Pi project is also an interesting project to me.
A Weatherstation would interest me as well.
I just need to find my first project and finish it and then I can always buy another Raspberry Pi as they are cheap enough.