I never understood these "rebate" and "cash-back" systems. I guess they are more common in the USA and Canada ? Never really seen stuff like that here except that NOW the store where I bought (ordered) my K100D Super has a Canon Cash-Back action.
but why don't they just give the $xx USD / €xx euro discount in the store ? Because IF I understand those rebate/cash-backs you first pay the full price and then the company (canon in this case) pays you a certain amount back
