Unless BTC value stabilizes, and conventional banks accepts transactions, i think not many providers would wanna trouble themselves. Obviously, Katrina has major mark up in her rate just to guard against any drop in value. I'm sure this would be great for online transactions in a virtual world like WoW, or some Avatar environment.
Also, whose to say that someone couldn't just flood in some BTC somewhere like how counterfeiter can print up $100 bills.