Try not to pay too much attention to price itself because that can be misleading.

As Mr. Burns pointed out, one tube lasts FOREVER. I think mine is still half full and I've probably had it for a year! If you put that into perspective, you are really only looking at what, less than a dollar per month?

Obviously the internet has made the hair game much more affordable than ever, but I personally try to increase the longevity of my pieces as much as possible. In the scope of things spending a little bit more on high quality products will generally save you money in the long run.

It's all about value.