I think most of it is the numbers.
There are fifty 6BT's to every one 4BT on the market.
The 4BT can make almost the same power as the 6BT with less weight and less room.
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."
Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization