I would rather read James' lengthy, but well-articulated thoughts that actually propose a solution instead of another pithy post whining about high BIN prices. I'd also rather read these posts than my own posts arguing with some dude in the BST.
To the OP's original position, I agree that banning those with a high retraction rate would be a positive first step, but I also agree that there are other forces at play driving prices beyond serial retractors.