Seriously people need to stop hating on EQing, I thought you were fellow audio enthusiasts who just wants the best possible end result? You need to understand there's a difference in unbalanced sound and sound quality, unbalanced sound != poor sound quality, one headphone can be badly balanced but have pretty good sound quality or vice versa, it's balanced but sound quality is still crap so different headphones benefit by EQing by various amounts, if it's just the unbalanced sound that is the major problem then it'll benefit more. Sometimes using a good quality EQ is all it takes to make some headphone sound better than another similarly or a bit expensier headphone. If you are of different opinion chances are:
1. You're only used to the software EQs that are included with media players which usually are of worse quality
2. You're choosing the products such as your sources by design/functionality rather than sound quality/EQ enhancement options. iPod/iPhone instead of Cowon or USB DACs instead of soundcards.
3. It's in your head that EQing is something "bad" that shouldn't be "required" for headphones you paid $$$ dollars for and should just function optimally out of box. Well every person got different taste how it should sound like, you just got lucky if a headphone happened to sound EXACTLY as you want.
I find EQing more interesting and fun than it's annoying, it's usually the first thing I start with when getting a new headphone to make it sound the way I think is optimal for me. It's not about price of the headphones, all headphones could possibly benefit to a more or less extent depending on your taste, some may need very tiny adjustment, others quite a bit more if it happens to be the opposite sound signature of what you prefer. Plus it can be very educative in understanding sound, it certainly have been for me.