Are you aware of any 2013 rewards redemption bonus forthcoming, in particular for Hawaii. Such as the use points for 4 nights recieve 5 night free or the redeem for 4 and recieve 7 at Waillea from rewards credit card?
These only come once in a while and usually without notice. You just have to watch for them.
Isn't it a standing bonus world wide that if you redeem for four nights the fifth night is free?