As said before i also think the most bgs stay where their friends work. (or where they started to work. maybe not the same bar, but the same city).
But there are always exceptions. I know one stunner who has 4 motobikes all over thailand. One in chiang mai, one in bkk, one in pattaya and one in phuket. She changes the place everytime she want to. But she is very clever and a real stunner. (and of cours a FL)....
Hugo