True, their quality can be compromised when you buy the cheaper ones. You can get other headphones with much better quality sound for just a bit more.
I still stand by my belief that the SkullCrushers are the best thing that have ever been on my head before. The subwoofer adds a dimension to them that no other headphones can offer, but if other companies made a headphone with great sound AND a subwoofer, I'd buy it. The TI's and those are just for looks, their sound does suck. I think they should only sell Crushers because anything else pales in comparison.