I use a hair straightener every other day as my hair is neither straight, nor wavy... they fall in the weird horrible waves category :-p I use Chi, its very good and my hair is not too damaged so far (keeping fingers crossed)
I thought about rebonding and permanent straightening too but then I found out about formaldehyde in all hair straightening products (and dyes). And I'm not sure if its used in Japanese rebonding products.
Formadehyde is toxic, allergenic, and carcinogenic. If you inhale a certain concentration of this chemical, it may cause headaches, a burning sensation in the throat, and difficulty breathing, as well as triggering or aggravating asthma symptoms.... and above all, can cause cancer.
I would rather have damaged hair than have asthma and cancer. Too bad the cosmetics industry does not educate its customers about the harmful effects of its products just for the sake of profits. And we use it all just for the sake of artificial beauty.