You dont have to reduce your total number of BTC holdings. So I went to coinbase and bought 6 BTC the same time I sent 6 BTC to BA.
It took around 5 mins total and was a lot easier than Western Union or bank transfer or whatever other method there is.
Dont underestimate the power of BTC as a payment system, its not just a store of value to horde. It has real utility in the world.
^- This.
Anyone who has done wire transfers and other types of payment over the pond... knows the pain it can be. Sometimes a bank visit.. always a fee.. takes several days.
BTC... moments.