hair straightener, er yeah. Options

[love-issosweet]

My hair is really thick and slightly wavy, depending on how I dry it. I really don't like the uhh..volume-nized look on me because it looks really funky on me. Plus, I have a weird shaped and small sized head. (haha)

The point is: I'm trying to persuade my mom to let me buy myself a hair straightener (either the Chi or the Sedu). However, she thinks it's going to damage my hair in the long run and might cause balding since a straightener pulls on your hair -_-. Well, I've done some research on both of the straighteners. Since these straighteners are supposedly higher quality than the ones you get at the drug stores, your hair should come out smoother and silky, I think. And the plates shouldn't really pull on your hair, but uh.."glides" through it. In the long run, there's usually no sign of damage, right? (and using a heat protector spray and an after-conditioner should prevent damage). Unfortunately, she's not buying it.

Any arguments that would convince her? and any comments on these straighteners for those who've used them before?

Please &&thank you.

//edit
I'm using my own money, btw. It's just that I need to get my parents' consent before buying anything. I'm 17 and I have barely any freedom.

[MissFits]

My friend has a parent like that. He can buy his own things as long as his dad doesn't see them, and if you get him gifts his dad doesn't like he is likely to take them away. It's really lame, but we only live a block away so we keep all his cool stuff here.

When do you turn 18? I am sure you could blow dry your hair straight until then. If you must have it just buy it. Unless they watch your every move you could straighten it when you get out of the shower (after it's dry of course) and hide it. If your parents ask tell them you used a blow dryer.