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?"
Bitcoin solves a variety of problems related to moving money; however, it is currently extremely underutilized as a solution to those problems. As its adoption continues to increase as people seek to solve their problems, the exchange rate will also increase.
For your average Joe and Jane, Dwolla Grid solves whatever problems related to moving money that bitcoin solves, and does it unquestionably legally too. And at $0.25 per transaction of any size, it's not much more expensive that the eventual suggested .01 BTC transaction fee and that at CURRENT exchange rates.
I believe that BTC will end up being no cheaper to use as an online transaction method than Dwolla or other new cash services. And in fact will be much more expensive from a certain point of view because of the cryptic disconnect from going from USD to BTC.
At any rate, your little explanation is still an outrageously tenuous reason for justifying BTC trading at "hundreds of times its current value."
In fact, if "ease of transactions" is the pinnacle of your vast speculative over-estimation of value, you have my sincere pity and concern for your well-being.