Mostly as investment, it is nice to have something not following stock market, and maybe can be hidden from some agency, if you know what I mean ....
I would have to say the same. I use most of my bitcoins as an investment, although I feel a little bad since bitcoin is some sort of a way for me to avoid taxes for now. I use around 20% of my coins as currency though, since I also want to buy stuff with my bitcoins.