It may be more cost efficient but people are still getting their bank accounts fucked off just for buying/selling them. BTC is for investors and drugs PERIOD!
The fact that people's bank accounts are getting closed because people are involved in bitcoin has nothing to do with bitcoin, it has to do with the fact that people are using their person bank accounts to conduct business with. If someone wants to engage in the practice of trading bitcoin and/or conducting bitcoin related business then they need to open a business bank account, not use their personal bank account