Bitcoins value fluctuates so fast that no one really knows how much something real costs in bitcoin on any given day.
As a result, even though Bitcoins are surprisingly valuable, as a currency it has very low velocity. Bitcoin is closer to gold, real estate or shares than it is to dollars. It makes an ok place[1] to park your value in the hopes that it'll beat inflation, but much like gold and houses it's extremely difficult to directly buy something with it.
You need to find a way to make your project a high velocity currency. I don't know how to do that though. Good luck :)
[1] Your mileage may vary. I personally wouldn't invest in bitcoin because it's too volatile for me to be bothered tracking it, but some have done so with success.