You're wasting your time trying to explain K's rational for their drive prices to people that don't own the system (I guess in fairness, there are some owner's that don't get it either). You will always have people that just cannot get their heads around paying those numbers for drives, and that's fine.
Those that "get it" understand that K's drive pricing is not an attempt to gouge owner's in a captive market and is ALL about maintaining the quality of the K System. This includes constantly trying to improve their components and the K experience for owners. This takes people, people that require a paycheck. Whether that be in R & D, or K Support (best in the biz, IMO), or the folks that answer admin calls, the reason they are all there, and K is still here when others have struggled and failed, is because of solid business practices, including pricing the only ongoing sales item once a system is in place, the drives, at a level that keeps people employed and us owner's supported.