Vidal Sassoon Brush Hot Air Brush Vs. Flat Iron?

Hot air brush vs. flat iron? - vidal sassoon brush

OK, so is starting to burn my hair iron. I love how my hair is straight and not heavy, will recover.
I would think a brush with hot air, but now that I broke my straightener, I have to choose between the two. I hear you can do a little soft hair with a brush of warm air, so I wonder if I will go further and please take the hot air brush, brush hot air and leaf sheet or simply grilled.
I have enough money for both if they are cheap, but I do not lose money if I'm not going to use something.

Also, you might me a good brush iron or hot air is less than $ 30 each, I could go to Walmart or Target?

I looked at the following:

http://www.target.com/Breast-Cancer-Awar ...
http://www.target.com/Revlon-Thermalaire ...
http://www.target.com/Vidal-Sassoon-Brus ...
http://www.walmart.com/catalog/product.d ...
http://www.walmart.com/catalog/product.d ...

thank you very much for your help.I choose the best answer