BTC is not going to be "stable" in the way described here until it gets much closer to its actual value, which is at least hundreds of times its current value. In the meantime, early adopter merchants stand to profit greatly even with the day-to-day volatility.
What is your basis for believing BTC's actual value is "hundreds of times its current value?"
Unsatisfied political demand. That's the white elephant in the room and pretty soon you can't ignore it.